Parsley
Parsley is a herb in the Apiaceae family. It grows best in full sun to part shade with medium moisture, and is listed for USDA zones 2-13. Plants reach harvest about 58–99 days after planting and sit about 12 inches apart.
Varieties
17 from High Mowing, Seeds Now & True Leaf Market · sorted by days to maturity▸Laica58–78 days
Gigante d'Italia-type; Sweet flavor; Fast maturing; Excellent regrowth
Resistance: IR: Septoria Leaf Spot
Surprisingly sweet and tasty, Italian flat leaf parsley with excellent regrowth capacity. Our trials team was struck by its uniquely delicious flavor. Leaves are almost sweet with a mild nod to parsley's typical flavor, perfect for raw preparations. Very fast maturing, offering high yields and cut and come again growth. From the breeders at HILD. 15.4M seeds/oz.
Growing notes: The herbs we offer in this section were chosen for their exceptional aroma, flavor, disease resistance and appeal. We offer tried-and-true standards, such as Genovese basil and Italian Flat Leaf parsley, alongside more modern varieties that have impressed us in our trials, like Aroma 2 F1 basil, resistant to fusarium wilt and slow to bolt, and Rutgers Devotion and Obsession basils with downy mildew resistance. Most herbs are compact and easy to grow, making them suitable for containers, greenhouses and small gardens.
View on High Mowing ↗▸Evergreen60–80 days
Can tolerate hot temperatures; Direct sow; Grows well with containers; Grows well with raised beds; Matures in <90 days; Super easy to grow
Evergreen Parsley Seeds (100% Heirloom/Non-Hybrid/Non-GMO) Dark green curly parsley leaves. - Can withstand frost and cooler temps better than the other varieties. - Use this parsley for garnishing, and culinary decoration. Day to Maturity | 70 days Planting Guide | Sow directly in your garden and space seeds 7" apart. Seeds can take a while to sprout. Can take 3-4 weeks before seedlings appear. Plant will grow to about 10" tall in about 60 days. Additional Details Parsley is a commonly grown culinary and medicinal herb that is often used as a domestic medicine. The fresh leaves are highly nutritious and can be considered a natural vitamin and mineral supplement in their own right. The plants prime use is as a diuretic where it is effective in ridding the body of stones and in treating jaundice, dropsy, cystitis etc. It is also a good detoxifier, helping the body to get rid of toxins via the urine and therefore helping in the treatment of a wide range of diseases such as rheumatism Follow SeedsNow.com's board Parsley on Pinterest.
View on Seeds Now ↗▸Giant Italian60–80 days
Bunching; Vigorous
Flat, large-leaved variety with aromatic leaves and excellent culinary quality. A high-yielding, very large and vigorous herb. Dependable variety with rapid regrowth that stands up well to frost. Dark green leaves on strong stems make beautiful bunches; delicious, classic flavor for seasoning. 12.5M seeds/oz. Unavailable in 2024
Growing notes: The herbs we offer in this section were chosen for their exceptional aroma, flavor, disease resistance and appeal. We offer tried-and-true standards, such as Genovese basil and Italian Flat Leaf parsley, alongside more modern varieties that have impressed us in our trials, like Aroma 2 F1 basil, resistant to fusarium wilt and slow to bolt, and Rutgers Devotion and Obsession basils with downy mildew resistance. Most herbs are compact and easy to grow, making them suitable for containers, greenhouses and small gardens.
View on Seeds Now ↗▸Hilmar60–80 days
Gigante d'Italia-type; High yielding; Traditional flat leaf
Italian flat leaf parsley with classically flavored, large, smooth leaves. High yielding with strong stems for efficient bunching in the field. Plants are robust and dark green with excellent vigor. Leaves are intensely aromatic and impart delicious flavor in dishes raw or cooked. From the breeders at HILD. 9.1M seeds/oz.
Growing notes: The herbs we offer in this section were chosen for their exceptional aroma, flavor, disease resistance and appeal. We offer tried-and-true standards, such as Genovese basil and Italian Flat Leaf parsley, alongside more modern varieties that have impressed us in our trials, like Aroma 2 F1 basil, resistant to fusarium wilt and slow to bolt, and Rutgers Devotion and Obsession basils with downy mildew resistance. Most herbs are compact and easy to grow, making them suitable for containers, greenhouses and small gardens.
View on High Mowing ↗▸Italian Flat Leaf60–80 days
Processing and bunching
Classic flat-leaf variety for use either fresh or dried for seasoning. Stems hold leaves upright for easy bunching. A very nutritious and tasty addition to meat and vegetable dishes. Excellent for freezing, drying and fresh eating. From Sakata Seed. 12.5M seeds/oz.
Growing notes: The herbs we offer in this section were chosen for their exceptional aroma, flavor, disease resistance and appeal. We offer tried-and-true standards, such as Genovese basil and Italian Flat Leaf parsley, alongside more modern varieties that have impressed us in our trials, like Aroma 2 F1 basil, resistant to fusarium wilt and slow to bolt, and Rutgers Devotion and Obsession basils with downy mildew resistance. Most herbs are compact and easy to grow, making them suitable for containers, greenhouses and small gardens.
View on High Mowing ↗▸Triple Moss Curled60–80 days
Direct sow; Grows well with containers; Grows well with raised beds; Matures in <90 days; Start indoors; Super easy to grow
Triple Moss Curled Parsley brings serious flavor and serious frills to your garden! This heirloom favorite flaunts gorgeous, deeply ruffled foliage that's almost too pretty to pick—almost. Packed with vibrant green leaves, it's a culinary superstar for soups, salads, and garnishes. Easy to grow and incredibly productive, this parsley variety keeps delivering fresh harvests throughout the season. Perfect for gardeners who want their herbs to look as good as they taste! The Triple Moss Curled Parsley plant grows to about 12" tall with high yields of very dark green curled leaves - Grows thickly and resembles a bunch of moss (hence the name) - Excellent for drying and use as a garnish - Extremely flavorful and aromatic Days to Maturity | 70 days Planting Guide | Sow directly in your garden and space seeds 7" apart. Seeds can take a while to sprout. Can take 3-4 weeks before seedlings appear. Plant will grow to about 10" tall in about 60 days. Follow SeedsNow.com's board Parsley on Pinterest.
View on Seeds Now ↗▸Dark Green Italian Flat-leaf61–83 days
Heirloom; Container; Annual
Petroselinum crispum Annual. 72 days. Non-GMO, Heirloom Dark Green Italian Flat Leaf Parsley Herb Garden Seed from True Leaf Market. Petroselinum crispum. Italian Parsley plants are hardy biennials often grown as annuals. As Dark Green Italian Flat Leaf Parsley has been around for over 2,000 years, this warm season green is a variety that's used as a culinary herb more than its curly-leaf cousin. Italian Parsley such as Dark Green Flat Leaf is an essential to pair with fish, sprinkle fresh on tacos or add to soups and salads!
View on True Leaf Market ↗▸Double Curled64–86 days
Heirloom; Container; Annual
75 Days to maturity. Petroselinum crispum. Double Curled Parsley Seeds. Non-GMO, annual, open-pollinated, heirloom. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. Double Curled Parsley is a classic heirloom herb featuring lush, curly, deep-green foliage that brightens any garden or container. With its compact, frost-tolerant growth and enduring appeal, it's perfect for border plantings, garnishes, or continuous harvesting through cool seasons. It can also be grown as a microgreen. ~18,000 seeds/oz.
View on True Leaf Market ↗▸Krausa Parsley64–86 days
Uniform plants; Curled-leaf parsley
Thick curls of deep green leaves on remarkably sweet stems. Beautiful curled-leaf parsley with delicious stems. These plants hold their color in the field without developing white or brown spots. Very cold tolerant and stands up well to summer heat. From our partners at Bejo Seeds. 20M seeds/oz
Growing notes: The herbs we offer in this section were chosen for their exceptional aroma, flavor, disease resistance and appeal. We offer tried-and-true standards, such as Genovese basil and Italian Flat Leaf parsley, alongside more modern varieties that have impressed us in our trials, like Aroma 2 F1 basil, resistant to fusarium wilt and slow to bolt, and Rutgers Devotion and Obsession basils with downy mildew resistance. Most herbs are compact and easy to grow, making them suitable for containers, greenhouses and small gardens.
View on High Mowing ↗▸Forest Green70–80 days
Heirloom; Non-GMO; Container; Annual
70-80 Days to maturity. Petroselinum crispum. Forest Green Parsley Seeds. Non-GMO, annual, open-pollinated, heirloom. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. Forest Green Parsley features rich, tightly curled dark green foliage on upright, compact plants that stay clean and tidy. This heat- and drought-tolerant heirloom delivers mild, savory flavor and makes excellent bunching parsley for fresh or dried use. ~1,500 seeds/oz.
View on True Leaf Market ↗▸Garden Blend70–99 days
Heirloom; Non-GMO; Container; Annual
70-99 Days to maturity. Petroselinum crispum. Garden Blend Parsley Seeds. Non-GMO, annual, open-pollinated, heirloom. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. Garden Blend Parsley is the ultimate kitchen herb—with a flat leaf, a semi-curled leaf, and an extra curly leaf strain all in one packet! This versatile, open-pollinated variety offers a continuous, flavorful harvest in as little as 70–99 days, perfect for containers, garden beds, or cut-and-come-again harvesting. ~18,000 seeds/oz.
View on True Leaf Market ↗▸Grune Perle70–90 days
Curled-leaf parsley; Biennial
Popular Eastern European, finely curled parsley with strong stems and vigorous growth habit. Exceptionally beautiful, tufts of deep green leaves make this parsley variety a stunning addition to the herb garden or market table. With a mild flavor and vigorous growth habit, this parsley is a perfect fit for both the commercial grower and home gardener. From our partners at Sativa Seeds. 20M seeds/oz.
Growing notes: The herbs we offer in this section were chosen for their exceptional aroma, flavor, disease resistance and appeal. We offer tried-and-true standards, such as Genovese basil and Italian Flat Leaf parsley, alongside more modern varieties that have impressed us in our trials, like Aroma 2 F1 basil, resistant to fusarium wilt and slow to bolt, and Rutgers Devotion and Obsession basils with downy mildew resistance. Most herbs are compact and easy to grow, making them suitable for containers, greenhouses and small gardens.
View on High Mowing ↗▸Italian Giant70–80 days
Heirloom; Container; Annual
70-80 Days to maturity. Petroselinum crispum. Italian Giant Parsley Seeds. Non-GMO, annual, open-pollinated, heirloom. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. Italian Giant parsley brings bold, savory flavor and lush greenery to any kitchen or herb garden. With towering, deep-green flat leaves and sturdy stems, it delivers high yield and robust culinary performance—perfect for sauces, salads, and garnishes. ~18,000 seeds/oz.
View on True Leaf Market ↗▸Italian Giant (Organic)70–80 days
Heirloom; Annual; Container; Organic
70-80 Days to maturity. Petroselinum crispum. Organic Italian Giant Parsley Seeds. Non-GMO, annual, organic, open-pollinated, heirloom. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. Italian Giant parsley brings bold, savory flavor and lush greenery to any kitchen or herb garden. With towering, deep-green flat leaves and sturdy stems, it delivers high yield and robust culinary performance—perfect for sauces, salads, and garnishes. ~18,000 seeds/oz.
View on True Leaf Market ↗▸Moss Curled70–80 days
Heirloom; Non-GMO; Container; Annual
70-80 Days to maturity. Petroselinum crispum. Organic Moss Curled Parsley Seeds. Non-GMO, annual, organic, open-pollinated, heirloom. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. Moss Curled Parsley brings lush, moss-like curls of vibrant green to your herb garden and dinner plate—ideal for adding texture and a subtle, fresh flavor to your dishes. Its compact, ornamental form performs beautifully in containers or raised beds, thriving even in cooler weather. ~18,000 seeds/oz.
View on True Leaf Market ↗▸Plain or Single70–80 days
Heirloom; Organic; Non-GMO; Container; Annual
70-80 Days to maturity. Petroselinum crispum. Organic Plain or Single Parsley Seeds. Non-GMO, annual, organic, open-pollinated, heirloom. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. Plain or Single Parsley is an essential culinary herb prized for its fresh, bright flavor and versatility in the kitchen. These seeds produce lush, leafy plants that thrive in both home gardens and containers. Perfect for adding vibrant taste to soups, salads, sauces, and more. ~18,000 seeds/oz.
View on True Leaf Market ↗▸Hamburg Rooted85–90 days
Heirloom; Non-GMO; Container; Annual
Non-GMO, Heirloom Hamburg Rooted Parsley Herb Garden Seed from True Leaf Market. Petroselinum crispum. This parsley is harvested for its root as a culinary herb. Cool perennial Parsley such as Hamburg Rooted herbs are in fact so popular for its cream-colored root, that it's also considered a tender vegetable! As Hamburg Rooted Parsley also produces edible deep-green leaves, this variety is best enjoyed when its root is cooked to perfection similar to parsnips.
View on True Leaf Market ↗
Plant spacing
In a square-foot bed, space parsley about 12 in apart — that fits 1 plant in each 1-foot square (1×1). Wider rows or containers space the same.
Plan your parsley planting
Add parsley to a free GardenDraft plan and get sow, transplant, and harvest dates computed for your ZIP code — with a drag-and-drop bed layout and reminders when it’s time to plant.
Start your free plan →At a glance
Storing & preserving
Refrigerate stems in water, or wrap in a damp towel for a few days.
- Dry: Dehydrate or air-dry, then store airtight away from light.
- Freeze: Freeze chopped in oil or water in ice-cube trays.
General home-preservation guidance — for tested processing times and safety, follow the National Center for Home Food Preservation.
Growing timeline
Companion planting — with cited sources
From US/Canada cooperative-extension publications and peer-reviewed studies. Evidence-tier dots show how strongly each recommendation is backed: ●●● peer-reviewed mechanism · ●● extension consensus · ● traditional knowledge with a plausible mechanism.
Pairs well with (9)
- Ají PepperEvidence tier C: Traditional practice with plausible mechanism but limited empirical replicationpest-deter
Companion interactions equivalent to other domesticated Capsicum spp.; see sweet-bell-pepper / hot-pepper entries for full data.
Source: S7
- AsparagusEvidence tier C: Traditional practice with plausible mechanism but limited empirical replicationpest-deter, flavor-folklore
Basil is traditionally interplanted with asparagus in kitchen gardens; basil volatiles may have mild repellent activity against asparagus beetle, but specific replicated extension data are absent. Tier C.
Source: S1
- Cayenne PepperEvidence tier C: Traditional practice with plausible mechanism but limited empirical replicationpest-deter
Companion interactions for cayenne are equivalent to other Capsicum annuum cultivars; see common-bell-pepper / hot-pepper entries for full data. Basil's eugenol and linalool volatiles have documented deterrent activity against thrips, aphids and whiteflies in lab assays.
Source: S7, Bekele & Hassanali, 2001
- Common TomatoEvidence tier C: Traditional practice with plausible mechanism but limited empirical replicationpest-deter, flavor-folklore
Basil volatiles (linalool, eugenol, methyl chavicol) repel whitefly and thrips in lab choice assays (Bekele & Hassanali 2001); field trials in tomato show mixed but generally favorable results. The traditional 'basil improves tomato flavor' claim has no empirical backing but is a deeply established practice. Basil also fills bed gaps and supports bees.
Timing: Transplant basil after soil reaches 18 C, same window as tomato.
Source: Penn State Extension, University of Maryland Extension, Bekele & Hassanali, 2001
- Habanero PepperEvidence tier C: Traditional practice with plausible mechanism but limited empirical replicationpest-deter
Companion interactions equivalent to other domesticated Capsicum spp.; see sweet-bell-pepper / hot-pepper entries for full data.
Source: S7
- Hot PepperEvidence tier C: Traditional practice with plausible mechanism but limited empirical replicationpest-deter, pollinator-attract
Hot pepper companion interactions mirror those of sweet bell pepper since both are Capsicum annuum. Basil's volatile oils deter several pepper pests and basil flowers attract pollinators and parasitoids.
Source: S7, Bekele & Hassanali, 2001
- OkraEvidence tier C: Traditional practice with plausible mechanism but limited empirical replicationpollinator-attract, pest-deter
Basil interplanted with okra is a traditional Southern practice; basil volatiles may repel some thrips and whitefly, and the flowering basil supplies nectar for parasitoid wasps. Mechanism plausible but empirical replication in okra systems is limited.
Region: Southeastern US summer gardens.
Source: S11
- Sweet Bell PepperEvidence tier C: Traditional practice with plausible mechanism but limited empirical replicationpest-deter
Same volatile-oil rationale as for tomato — basil interplanted with sweet pepper may reduce thrips and whitefly pressure; bed-mate benefit and pollinator support are the more consistent gains.
Source: University of Maryland Extension
- Tabasco PepperEvidence tier C: Traditional practice with plausible mechanism but limited empirical replicationpest-deter
Companion interactions equivalent to other domesticated Capsicum spp.; see sweet-bell-pepper / hot-pepper entries.
Source: S7
Avoid planting near (3)
- Black WalnutEvidence tier B: Extension consensus across multiple US/Canada land-grant institutionsallelopathy-negative
Basil is juglone-sensitive and lists in most extension juglone-tolerance tables as a 'do not plant' species near black walnut.
Source: S5, Penn State Extension
- Common RosemaryEvidence tier C: Traditional practice with plausible mechanism but limited empirical replicationflavor-folklore
Traditional charts pair basil away from dry-loving Mediterranean herbs because of conflicting water needs rather than chemical antagonism. Spatial/cultural avoidance rather than allelopathy.
Source: University of Maryland Extension
- Common SageEvidence tier C: Traditional practice with plausible mechanism but limited empirical replicationflavor-folklore
Traditional caution based on conflicting cultural needs (basil prefers richer, moister soil than sage); folklore-tier rather than chemical antagonism.
Source: University of Maryland Extension
Sources cited
- S1
- Cornell University Cooperative Extension — vegetable production guides
- S11
- University of Georgia Cooperative Extension
- S28
- Bekele & Hassanali, 2001 — basil volatile bioassay
- S5
- Michigan State University Extension
- S6
- Penn State Extension
- S7
- University of Minnesota Extension
- S9
- University of Maryland Extension — Home & Garden Info Center
Care & troubleshooting— extension-sourced, with citations
When to feed, prune & water
Attract beneficial insects and protect pollinators
Protection- Routine carePlant insectary flowers and tolerate light pestsstrong evidence — extension confidence
Grow a diversity of flowering plants (including small-flowered umbels and asters) to feed predators and parasitoids, and tolerate low pest numbers so natural enemies have prey to stick around.
- Routine careNever spray open bloomsstrong evidence — extension confidence
Avoid insecticides on flowering plants and apply any needed sprays in the evening when pollinators aren't active, and favor selective products over broad-spectrum ones to spare bees and beneficials.
Mulch to suppress weeds and retain moisture
Mulch- Routine careApply organic mulch around plantsstrong evidence — extension confidence
Spread a few inches of straw, shredded leaves, or compost around established plants (keeping it off stems) to hold soil moisture, suppress weeds, and moderate soil temperature; wait until soil has warmed for heat-loving crops.
Plan crop rotation
Rotation- Routine careRotate plant families between bedsstrong evidence — extension confidence
Avoid planting the same family in the same bed in consecutive years (aim for a 3+ year gap), grouping crops by family so soilborne diseases and pests that build up don't carry over to the next susceptible crop.
- Routine careSequence for soil healthmoderate evidence — extension confidence
Follow heavy feeders like tomatoes and brassicas with legumes or a cover crop to support soil fertility and structure, and keep simple notes each year so you can track where each family grew.
Thin crowded seedlings to final spacing
Thinning- Routine careThin to ~2 in spacing, then again later· every 3 wks · ~3 wksstrong evidence — extension confidence
Crowded carrots stay small and forked. Thin to about 1 in when seedlings are 2-3 in tall, then to 2-3 in a few weeks later. Snip rather than pull to avoid disturbing neighbors.
Clean up debris and sanitize at season end
SanitationUnusual this time of year.
- Routine careRemove spent plants and fallen debrisstrong evidence — extension confidence
Pull and clear old plants, dropped fruit, and leaf litter at season end, since many pests and diseases overwinter in this debris; dispose of diseased material rather than composting it.
- Routine careClean tools, stakes, and cagesmoderate evidence — extension confidence
Wash and sanitize stakes, cages, and tools that touched diseased plants before storing or reusing them to avoid carrying pathogens into next season.
Something looks wrong?
Describe what you see on your parsleyand we'll rank the likely causes — most likely first, least-invasive fix first.
Bacterial soft rot
Diseasesevere- CulturalRemove rotting plants and produce (manage, not cure)strong evidence — extension confidence
Soft rot can't be cured once tissue breaks down; promptly remove and discard affected plants and produce so the bacteria don't spread to neighbors or other stored vegetables.
- CulturalAvoid wounds and excess moisturestrong evidence — extension confidence
Harvest in dry conditions, handle gently to avoid bruising, control insects that create entry wounds, and improve drainage; cure and store bulbs and roots cool and dry.
- CulturalDon't overwater and rotatemoderate evidence — extension confidence
Avoid waterlogged soil and overhead watering that splashes bacteria, and rotate away from previously affected fleshy crops to lower disease pressure.
Southern blight
Diseasesevere- CulturalRemove infected plants and surrounding soil (manage, not cure)strong evidence — extension confidence
Once a plant collapses it can't be cured; dig out the plant plus the top few inches of nearby soil containing sclerotia and dispose of it, avoiding spread on tools.
- CulturalBury residue and rotatemoderate evidence — extension confidence
Deep-turn soil to bury sclerotia, remove crop debris at season end, and rotate susceptible solanaceous and legume crops with grasses for several seasons.
- CulturalAdjust soil pH and plant earlymoderate evidence — extension confidence
Maintain soil pH at the level recommended for the crop, since the disease is worse in low-pH soils, and time plantings so harvest begins before peak summer heat favors the fungus.
White mold (Sclerotinia stem rot)
Diseasesevere- CulturalRemove infected plants (manage, not cure)strong evidence — extension confidence
There's no cure for an infected plant; cut out and bag affected plants including the black sclerotia, and don't compost them, since sclerotia survive years in soil.
- CulturalOpen the canopy and rotatestrong evidence — extension confidence
Space plants widely, control weeds, orient rows to prevailing wind, and avoid overhead watering at bloom to dry the canopy; rotate to non-host crops (corn or other grasses) for several years.
- CulturalWater at the base, not overheadmoderate evidence — extension confidence
Use drip or soaker irrigation to keep foliage and the soil surface drier, which discourages the sclerotia germination and mycelial growth that drive white mold.
Carrot rust fly
Pestmoderate- CulturalRow cover + delay sowingstrong evidence — extension confidence
Cover the bed with insect netting from sowing, and avoid the spring egg-laying peak by sowing a little later. Crop rotation helps.
Root rot from overwatering / poor drainage
Diseasemoderate- CulturalLet soil drain and water lessstrong evidence — extension confidence
Water root rots like Pythium thrive in saturated soil, so cut back watering, let the surface dry between irrigations, and water at the base rather than keeping soil constantly wet.
- CulturalImprove drainage and aerationstrong evidence — extension confidence
Use raised beds, loosen compacted soil, and add organic matter to improve drainage; remove plants that are already rotted since affected roots won't recover.
Tarnished plant bug / lygus
Pestmoderate- CulturalManage surrounding weedsstrong evidence — extension confidence
Keep broadleaf weeds mowed or removed around the garden, since lygus build up on flowering weeds and move to crops as those weeds dry down; avoid mowing large weedy areas right beside fruiting crops at bloom.
- CulturalVacuum or shake plants to monitor and reduce· every 5 daysmoderate evidence — extension confidence
Tap plants over a light-colored tray to check for nymphs; a handheld vacuum used once or twice weekly can hold low to moderate numbers down on small plantings.
- OrganicTreat nymphs if damage is building· every 1 wkmoderate evidence — extension confidence
For active nymph infestations, azadirachtin or a Beauveria bassiana product can give some control per the label; preserve the parasitic wasps and other natural enemies that help suppress lygus.
Aphids
Pestlow- CulturalBlast off with water· every 3 days · ~2 wksstrong evidence — extension confidence
Knock colonies off with a strong jet of water in the morning; repeat every few days. Light infestations rarely need more.
- OrganicInsecticidal soap - label use only· every 1 wk · ~3 wksmoderate evidence — extension confidence
For persistent colonies apply insecticidal soap to undersides per label. Avoid open flowers.