OmniGrow

Althaea officinalis

Species

Also called marsh mallow, Malva officinalis, marshmallow

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Althaea officinalis
Photo: Franz Eugen Köhler, Köhler's Medizinal-Pflanzen · Public domain · Wikimedia Commons

Fact sheet

every fact quoted from its source
Typeperennial

“Althaea is an easy-to-grow perennial that is ideal for beginners.” — Althaea Plant Growing & Care Guide for Gardeners

Days to germination42–56 days

from Althaea · “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

from Althaea · “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

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

Waterregularly during dry spells

“Water regularly during dry spells.” — Althaea Plant Growing & Care Guide for Gardeners

Spacing18–24 in

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

Propagationseed, seedlings

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

Start indoors6–8 weeks before last frost

from Althaea · “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

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

Ready whenflowers are removed prior to setting seed

“A second bloom is possible if flowers are removed prior to setting seed.” — Althaea Plant Growing & Care Guide for Gardeners

Edible partsleaves and flowers

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

Pestsaphids, spider mites

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

Diseasespowdery mildew

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

Who grows this

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Where this comes from