How to Grow Tomatillo Purple Aunt Molly's
Tomatillo Purple Aunt Molly's
Physalis philadelphica
vegetablePurple Aunt Molly's is a distinctive variety of tomatillo with deep purple fruits enclosed in a papery husk. This heirloom cultivar produces small to medium-sized fruits with a complex, slightly sweet flavor and is more cold-tolerant than many tomatillo varieties. The plant grows as a vigorous annual in warm climates and produces abundantly throughout the growing season.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 5-9; can be grown in zone 3-4 with season extension techniques due to cold tolerance
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Growth Stages
Seedling
2-3 weeksYoung plants with first true leaves appear; cotyledons followed by simple oval leaves
Keep soil consistently moist. Provide 14-16 hours of grow light if indoors. Maintain temperature around 70-75°F. Thin seedlings to strongest one per cell.
Vegetative Growth
4-6 weeksPlant develops bushy habit with multiple stems and compound leaves; no flowers yet. Reaches 2-4 feet tall depending on variety and conditions.
Harden off transplants over 7-10 days before planting outside after last frost. Support with stakes or cages if needed. Pinch growing tips early to encourage bushiness. Water consistently and fertilize every 2-3 weeks with balanced formula.
Flowering
3-4 weeks (flowers continue throughout season)Small, yellow flowers with dark centers appear in leaf axils. Flowers are self-fertile but benefit from cross-pollination. Multiple flowers develop along stems.
Ensure consistent watering during flowering to prevent blossom-end rot. Maintain warm temperatures (65-80°F). Allow insects access for pollination or hand-pollinate with small brush. Support expanding plant with additional staking if needed.
Fruiting
6-8 weeksGreen fruits develop inside papery husks. Purple Aunt Molly's fruits transition from green to deep purple-violet when ripe. Husk enlarges and eventually splits as fruit matures.
Reduce nitrogen fertilizer; switch to phosphorus-rich formula to encourage fruiting. Maintain consistent watering. Pick fruits when husk splits and fruit gives slightly to pressure. Fruit continues developing throughout warm season.
Harvest & End of Season
4-8 weeks depending on locationMature fruits with fully purple color and splitting husks ready for picking. Plant productivity gradually declines as temperatures cool in fall.
Continue harvesting as fruits mature. Cold-tolerant variety may produce light fruit until first frost. Remove plant after first hard frost. Collect seeds from fully ripe fruits for next year if desired.
Common Pests
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Hand-pick regularly. Use Bacillus thuringiensis (Bt) spray if infestation occurs. Encourage parasitic wasps with flowering plants.
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Use floating row covers on young plants. Spray with neem oil or insecticidal soap. Remove affected leaves. Encourage natural predators.
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Spray undersides of leaves with water to dislodge. Use yellow sticky traps. Apply neem oil or insecticidal soap weekly if needed.
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Increase humidity and water plants regularly. Spray leaves with water. Use miticide spray if severe. Remove heavily infested leaves.
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Remove affected leaves. Improve air circulation. Avoid overhead watering. Apply copper fungicide if disease spreads.
Uses
Fresh salsa & cooking
CulinaryPurple Aunt Molly's tomatillos have a complex, slightly sweet and tangy flavor excellent for fresh salsas, sauces, and cooked dishes. The purple color adds visual appeal and slightly different flavor profile compared to green tomatillos. [source]
Preserves & canning
CulinaryThe firm flesh preserves well in jams, relishes, and canned salsas. The tart-sweet flavor of purple varieties makes exceptional preserves with distinctive color. [source]
Nutritional benefits
MedicinalTomatillos are high in vitamin C, fiber, and antioxidants. Purple varieties contain additional anthocyanins from their pigmentation, supporting antioxidant and anti-inflammatory health benefits. [source]
Cold-hardy heirloom variety
HouseholdPurple Aunt Molly's exceptional cold tolerance makes it suitable for short-season and northern gardens where standard tomatillos fail. This heirloom cultivar can be saved for seed production. [source]
Pollinator attraction
WildlifeThe flowers attract bees, moths, and other pollinators throughout the growing season. The plant provides food and habitat for beneficial insects that control garden pests. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Pick fruits when the husk splits open and the fruit underneath is deep purple and slightly soft to pressure (usually 70-90 days after transplanting). Fruit can be harvested while still green and will continue ripening off the plant at room temperature. Continue harvesting every 2-3 days for peak production. The variety is notably cold-tolerant and may produce light crops until the first hard frost, unlike tender varieties that stop producing in cool weather.
Fun Facts
- 🌱 Purple Aunt Molly's is an heirloom variety passed down through families in the American South, and true seed-saving lines maintain distinct characteristics. The deep purple color is quite rare among tomatillo varieties, making this cultivar visually striking and flavorful.
- 🌱 Tomatillos are self-fertile but produce much better yields with cross-pollination from another tomatillo plant, as they prefer to set more fruit with a pollination partner nearby.
- 🌱 The papery husk is not just protective—it's edible and nutritious. Some traditional preparations include the husk, and the fruit develops its full flavor only after the husk splits, indicating ripeness.
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