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Email stock updates for: Hierochloe odorata
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Genus: Hierochloe
Species: odorata
Family Name: Poaceae/Gramineae
Seed Catalogue No.: 688R
English Name(s): Sweet Grass, Vanilla Grass, Holy Grass
Hardiness: Hardy
Lifecycle: Perennial
Suitable for: Cut Flowers
Colour: Green
Flowers: April, May
Lighting Conditions: Full Sun, Partial Sun
Soil Type: Clay, Chalk, Sand, Loam
Soil Acidity: Alkaline, Neutral, Acid
Moisture: Well-drained
Average Rating: (3.5 of 5 based on 3 reviews)
Reviewed by Clare on 8th August 2023
These took about 3 months to germinate, but eventually the whole packet grew. They needed heat of the summer and moisture. Inspired by fantastic ‘Braiding Sweetgrass’ book - . I’m now looking for advice on how to care for the in the UK and keep them going. If they don’t flower , will they need heat through the autumn/winter?
Rating: 4
Chiltern Seeds Responded on 30th August 2023
Thank you for your review. We would normally expect germination results to show in 2 weeks but they do require a very warm temperature which this spring/summer has been lacking and is possibly the cause for the delayed germination. With regards to after care, they are a hardy perennial so should withstand the UK winter. They would prefer a damp, rich soil in full or partial sun but will tolerate most soil types and growing situations. Often used to stabilise water margins/ banks. Site carefully as the grass will spread via its rhizomatous root system. Can be container planted. The Chiltern Seeds Team.
Reviewed by Alex C on 8th February 2023
I ordered these seeds after reading Braiding Sweetgrass by Robin Wall Kimmerer. She said that only 1 in a 100 seeds germinate so I was pleasantly surprised to get some of these seeds to germinate (eventually) and I planted them out in a tub which filled out with the grass. Just need to see if they establish or I need more seed.
Chiltern Seeds Responded on 1st March 2023
Thank you for your review. These seeds can be a little stubborn to get going, we have found temperature is key and they like it quite warm. We hope they continue to do well for you.
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Germination Instructions
Sow indoors prior to last expected frost. Sow directly after danger of frost has passed. Indoors sow into moist, well-drained seed compost. Just cover with a sprinkling of soil. Ideal temp. 21°C. Germination takes 1-2 weeks. Transplant seedlings when large enough to handle to individual pots and grown on under glass. Acclimatise and plant out after danger of frost has passed. Directly, sow into moist well-drained soil, keep moist until plants are established.
Growing Instructions
Prefers a damp, rich soil in full or partial sun but will tolerate most soil types and growing situations. Often used to stabilise water margins/ banks. Site carefully as the grass will spread via its rhizatomous root system. Can be container planted.
Cultivation Instructions
Propagate by seed or via division is spring. The roots can spread very easily, with any part of the root able to produce new plants.
When to Sow
Approximate number of seeds per packet: 25
Please note we pack the majority of our seeds by volume so the number of seeds indicated is only an approximation.
Hierochloe odorata
