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Email stock updates for: Althaea cannabina
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Genus: Althaea
Species: cannabina
Family Name: Malvaceae
Seed Catalogue No.: 82Z
English Name(s): Hemp-leaved Marsh Mallow
Hardiness: Hardy
Lifecycle: Perennial
Colour: Pink/Rose
Flowers: July, August, September, October, November
Lighting Conditions: Full Sun
Soil Type: Chalk, Sand, Loam
Soil Acidity: Alkaline, Neutral, Acid
Moisture: Well-drained
Average Rating: (4.5 of 5 based on 2 reviews)
Reviewed by Felicity Baker on 14th September 2022
I visited some gardens last year and have been searching for this plant ever since! So pleased to finally find it and have just purchased a packet of seeds, along with lots of other lovely temptations from your website! Thank you.
Rating: 4
Chiltern Seeds Responded on 14th September 2022
Thank you for your review. We are pleased to hear that you have finally found these and hope you enjoy watching them grow! The Chiltern Seeds Team.
Reviewed by Marion Brandis on 5th August 2016
This deserves to be better known! So beautiful and etherial, and flowering late in the season when many other pants are past their best. Easy to grow too. If you like Verbena bonariensis - and who doesn't? - you will this one too for its tall wispy see-through qualities.
Rating: 5
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Germination Instructions
Sow indoors in spring or directly. Surface sow individual seeds 20mm apart onto moist, well-drained seed compost. Just cover seed with a sprinkling of soil. Ideal temp. 15-21°C. Germination takes 10-14 days. Transplant seedlings when large enough to handle, 3-4 weeks later, into individual pots. Handle leaves only, the stem is fragile. Grow on in bright cool conditions. Acclimatise and plant out in May/ June. Can be sown into a cold frame in mid summer and planted out the following spring.
Growing Instructions
Prefers a well-drained, moderately fertile soil in full sun, against a sunny wall is ideal. May require staking in exposed sites. This genus can be prone to rust fungus, treat with fungicide if desired.
Cultivation Instructions
Propagate by seed. Cut back after flowering. Will self-seed. self-seeded plants will try to creep towards the sunny front of a border. Dig these up and pot, once established replant towards the back of the border.
When to Sow
Approximate number of seeds per packet: 22
Please note we pack the majority of our seeds by volume so the number of seeds indicated is only an approximation.
Althaea cannabina
