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Althaea

Genus

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Althaea
Photo: Phil Sellens from East Sussex · CC BY 2.0 · Wikimedia Commons

Fact sheet

every fact quoted from its source
Days to germination42–56 days

“sow them indoors 6-8 weeks before the last frost date” — How to Grow Althaea: A Complete Guide for Beginners - Bloomvara

Days to maturity90–120 days

“it typically takes about 90 to 120 days for Althaea to produce flowers” — How to Grow Althaea: A Complete Guide for Beginners - Bloomvara

Lightfull sun to partial shade

“Choose a location with full sun to partial shade” — How to Grow Althaea: A Complete Guide for Beginners - Bloomvara

Waterconsistently moist but not waterlogged

“Keep the soil consistently moist but not waterlogged” — How to Grow Althaea: A Complete Guide for Beginners - Bloomvara

Spacing18–24 in

“spacing them about 18-24 inches apart to allow room for growth” — How to Grow Althaea: A Complete Guide for Beginners - Bloomvara

Propagationseed, seedlings

“Althaea seeds or young seedlings” — How to Grow Althaea: A Complete Guide for Beginners - Bloomvara

Start indoors6–8 weeks before last frost

“sow them indoors 6-8 weeks before the last frost date” — How to Grow Althaea: A Complete Guide for Beginners - Bloomvara

Transplantafter danger of frost has passed

“After danger of frost has passed” — How to Grow Althaea: A Complete Guide for Beginners - Bloomvara

Ready whendeadhead spent flowers to encourage continuous blooming

“Deadhead spent flowers to encourage continuous blooming and maintain plant health” — How to Grow Althaea: A Complete Guide for Beginners - Bloomvara

Edible partsleaves and flowers

“Harvest leaves or flowers for medicinal or culinary uses” — How to Grow Althaea: A Complete Guide for Beginners - Bloomvara

Pestsaphids, spider mites

“common pests like aphids or spider mites” — How to Grow Althaea: A Complete Guide for Beginners - Bloomvara

Diseasespowdery mildew

“Fungal diseases like powdery mildew” — How to Grow Althaea: A Complete Guide for Beginners - Bloomvara

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1 species

Where this comes from