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IN THIS GUIDE

ASTILBE GUIDES

purply-pink flowering astilbe plants growing outside in front of a fence

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Astilbes are beautiful flowering perennial , perfect for a moist , partly shaded dapple .

If you already have a fledged plant in your garden , you might be wonder how best to propagate it to gain more plants .

pink flowering astilbe shrub growing outside in front of purple flowering astilbe and some trees

While separate Astilbes or growing from unornamented roots are far easier and more true propagation methods , you’re able to also produce Astilbes from seed .

Why It’s An Unreliable Method

Gardeners tend to choose other method of generation because :

on occasion , Astilbes which are very felicitous in their place in your garden may ego - seeded player .

If they do so , you may replant these volunteer seedling into their growing positions in either September or in around April , or you may leave them where they have naturally chosen to grow .

pink flowering astilbe growing in a field that is slowly dying and producing brown seeds

If you do decide that you would wish to collect seeds to sow :

Read on for a more detailed explanation of each of these steps .

Astilbe Is Best Sown Indoors

Astilbe seeds are best sown indoors in former spring and then plant out into your garden in September or October .

1) Collect Seeds

The first footstep is to pull together the small seeds from your Astilbe .

After the flowers have blossom , the seeds will mold along the feathery flower heads , which are technically called inflorescences .

If you do not deadhead , you’re able to collect the stems before the seeds break up .

plant seeds ready to germinate lying on moist soil

Lay out the prow to dry somewhere juiceless and once the fuel pod seem quick to split subject , invest them into a newspaper bag .

Give the suitcase a right waggle and allow the seed fall into the paper bag .

Then , collect the seed and place them into a paper gasbag or another worthy container to keep them safe and ironic until spring .

someone poking holes into potting soil in a seed tray

2) Store Seeds Until Spring

It is upright to store the seeds until leap before planting because older germ which have been stored cautiously over the winter endure a somewhat better hazard of burgeon forth successfully .

Keep the seeds in your electric refrigerator or in another cool placement .

3) Soak Seeds Before Sowing

In other spring , take your seeds out of reposition and place them in tepid water to soak for 24 time of day .

This is another strategy which can improve germination rates .

4) Sow The Seeds

Prepare a suitable source - lead off flat , tray or small pot , filled with a peat - complimentary potting mixing which is light and air , yet suitable moisture retentive .

disperse the seed into your choose ejaculate begin container or containers .

“ After this whole tone , thinly adjure them into the compost but do not cover them as they need brightness to pullulate , ” partake in Master Horticulturist Roy Nicol .

someone planting out an astilbe seedling into a hole in the ground in a garden bed in front of a wire fence

“ If the seeds are viable and the compost is assert at around 15 ° C and kept moist , germination should happen within around 20 - 25 days . ”

5) Pot On Then Plant Out

As before long as your seedling are heavy enough to handle , prick out the seedlings and pot on into 9 cm pots to grow on .

Transplant them into their terminal growing positions in your garden in September or October .

Astilbes need a sunny or ideally part shaded position , with filth which stay on dampish but does not become waterlogged .

Keep the plants well watered throughout the summer months , mulch each spring with plenty of organic matter , and in 3 years or so , there is a prospect that your Astilbe grown from seed will reach a size where they will begin to flower .