How to grow summer bedding from seed

Do it:

Mar, Apr

Takes just:

15 minutes

At its best:

Jun, Jul, Aug, Sep

Raising summer bedding plants from seed is easy, it saves you money and greatly extends the range of plant varieties you can grow.

The secret of germinating summer bedding seeds is a plentiful supply of warmth and light. Most seeds need a steady heat of 18-21°C to germinate, so do consider investing in a heated propagator to maintain a constant temperature through March and April.

You will need

Good quality seed compost

Pots

Summer bedding seeds

Vermiculite

Advertisement

Fill pots with seed compost, tap to settle, and lightly press the surface with the base of a pot. Space your seeds evenly over the compost.

Cover seeds thinly with fine, sieved compost, or use a layer of vermiculite, a sterile material perfect for covering seeds.

Germination rates vary between varieties. Wait until the seedlings are well developed with good roots before pricking out.

Handle seedlings by their first leaves to avoid crushing the stem and plant individually into pots of seed compost.

By late May or early June, late frosts should have passed and outdoor conditions will be warm enough to plant your bedding into their final position outside for a bright summer display.

Advertisement

Water seedlings regularly in order to avoid compost drying out and after 4-6 weeks add a weekly liquid feed using a general fertiliser to promote strong and healthy growth.

Discover more ideas and inspiration

Related content

How to take begonia leaf cuttings

How to grow winter salad

How to sow half-hardy annuals

Related offers

Offer

40 free pansies

Buy 12 pansy 'Cool Wave' jumbo plugs and receive 40 pansy 'Frizzle Sizzle' plus for free. Plus, save £5 on Allium 'Purple Sensation'.

Order now

Offer

Claim 100 free alliums

Claim your collection of 100 allium bulbs, including six striking varieties (worth over £23), for free. *Just pay £5.65 for postage.

Use code: already applied

Order now

FREE P&P

Subscriber only content

Perfect tulip collections

Enjoy harmonius colour combinations next spring with Sarah Raven's tulip collections. You'll get free p&p, worth £4.95, on tulip collections with this offer.

Unlock now