How to Grow Purple Ruffles Basil
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Purple Ruffles Basil
Ocimum basilicum var. purpurascens
herbPurple Ruffles is an ornamental and culinary basil cultivar prized for its deep purple, heavily ruffled foliage and mild licorice-clove flavor. The attractive leaves make it as suitable for decorative gardens as for the kitchen. It grows as a tender annual, reaching 18-24 inches tall with impressive textured foliage.
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Example Purple Ruffles Basil timeline · Pittsburgh, PA (Zone 6b)
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Plant Purple Ruffles Basil
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Purple Ruffles Basil
Around Jun 16≈ 60 days after planting
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Growing Conditions
Soil
Growing Zones
Find your zone →Annual in zones 3-9; perennial in zones 10-11. Best grown as a warm-season annual in most climates.
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Seedling
2-3 weeksTiny seedlings with 2-4 small, smooth green leaves appear within 5-10 days. Foliage is light green without purple coloration yet.
Maintain warm soil (70-75°F). Keep soil lightly moist. Provide bright indirect light until first true leaves emerge. Thin seedlings to prevent crowding.
Vegetative Growth
4-6 weeksPlant develops multiple sets of true leaves with characteristic ruffled edges. Purple coloration gradually appears on leaf undersides and stems as plant matures. Reaches 6-12 inches tall.
Pinch off terminal buds to encourage bushier growth. Provide full sun for color development. Fertilize every 2-3 weeks with balanced fertilizer or fish emulsion. Maintain consistent moisture.
Flowering
Ongoing until frost or plant stopTall flower spikes emerge with small white, pink, or lavender tubular flowers arranged in dense whorls. If left unpinched, plant may become leggy.
Pinch off flower buds as they appear to maintain leaf production and plant bushiness. Flowering diverts energy from foliage growth. Remove buds for culinary use; allow some to flower for ornamental beauty if desired.
Peak Harvest
6-8 weeks (until frost or plant senescence)Plant is 18-24 inches tall with abundant, deeply purple, heavily ruffled leaves at maximum flavor and visual appeal.
Harvest regularly (every 2-3 days) to encourage continued branching and leaf production. Always harvest from the top to maintain shape. Remove any diseased or yellowing leaves.
Senescence
Variable, until frost or complete plant deathAs temperatures cool in fall or plant reaches end of season, growth slows, lower leaves yellow and drop, and plant becomes woody.
Reduce watering slightly. Consider pulling entire plant after first frost in cold climates. In warm zones, may cut back severely to rejuvenate for winter growth.
Common Pests
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Hand-pick in early morning; use row covers; apply neem oil if infestation is heavy
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Spray with strong water jet; use reflective mulches; apply insecticidal soap or neem oil; introduce yellow sticky traps
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Increase humidity by misting; spray with water; use neem oil or miticide; ensure good air circulation
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Spray with strong water; use insecticidal soap; apply neem oil; introduce beneficial insects like ladybugs
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and
Handpick at night; use beer traps; apply diatomaceous earth; remove garden debris
Uses
Fresh cooking and pesto
CulinaryPurple Ruffles basil adds striking visual appeal to salads, pasta dishes, and pizzas while providing a mild licorice-clove flavor slightly different from green basil. The ruffled leaves make excellent pesto or basil oil for a beautiful purple condiment. [source]
Garden and container decoration
OrnamentalThe deep purple, heavily textured foliage makes Purple Ruffles attractive as an ornamental plant in borders, containers, and mixed plantings. It combines well with silver-leafed plants and bright flowers for striking color contrast. [source]
Tea and digestive support
MedicinalBasil leaves can be brewed into a soothing tea believed to aid digestion, reduce inflammation, and support respiratory health. The aromatic compounds in basil have traditional uses in herbal medicine. [source]
Fresh herb preservation and drying
HouseholdPurple Ruffles dries beautifully, retaining much of its color and flavor. Dried leaves can be stored for winter use in teas, cooking, and herbal blends. [source]
Pollinator attraction
WildlifeWhen allowed to flower, Purple Ruffles' delicate blooms attract bees, butterflies, and other beneficial pollinators to the garden, supporting ecosystem health. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Begin harvesting when plant is 6-8 inches tall by pinching off the top 2-3 sets of leaves. Continue harvesting regularly—every 2-3 days when actively growing—to encourage bushiness and prevent flowering. Harvest in the morning after dew dries but before heat peaks, when essential oils are strongest. Pinch from the top down; never strip the entire plant. Use fresh immediately or dry for storage. Plants are most productive in warm weather (65-85°F).
Fun Facts
- 🌱 Purple Ruffles basil was an All-America Selections (AAS) award winner in 1987, recognized for its exceptional ornamental qualities and garden performance.
- 🌱 The deep purple color comes from anthocyanin pigments (the same compounds that color blueberries and red grapes), which are produced more intensely under strong sunlight and cooler nights.
- 🌱 Unlike some purple basil varieties that have peppery or less pleasant flavors, Purple Ruffles maintains the classic sweet basil taste, making it an ideal dual-purpose plant for both beauty and culinary use.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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