Flowers to Sow in April

Wondering which flowers to sow in April? It’s time to sow half-hardy flowers including nemesia, rudbeckia, Cosmos and French marigold under cover and hardy annuals such as oxalis and clarkia can be sown either indoors or outdoors. Browse our April flower seeds below. 

Wondering which flowers to sow in April? It’s time to sow half-hardy flowers including nemesia, rudbeckia, Cosmos and French marigold under cover and hardy annuals such as oxalis and clarkia can be sown either indoors or outdoors. Browse our April flower seeds below. 

Refine by

Refine Products
  • View
  • Price
    Show Less Load More
  • Climate
  • Where to Grow
  • Colour
  • Type of Flowering Plant
  • Sow In
  • Plant In
  • Harvest In
  • Height
  • Spread
  • Spacing
  • Scented
  • Soil Type
  • Hardiness
  • Other
317 items
  • You're on page 1
  • 2
  • 3
  • 4
  • 5
Page 1 of 11

Sweet Pea Seeds - Sublime Scent Mix

Average Packet Content 25 seeds

£2.99

Cosmea Seeds - Sonata Dwarf Mix

Average Packet Content 65 seeds

£1.99

Sunflower Seeds - Giant Yellow

Average Packet Content 50 seeds

£1.99

Cosmos Seeds - Sensation Tall Mix

Average Packet Content 150 seeds

£1.99

Sweet Pea Seeds - Spencer Special Mix

Average Packet Content 35 seeds

£1.75

Geranium F2 Seeds - Super Hybrid Mix

Average Packet Content 25 seeds

£2.79

Nasturtium Seeds - Little Gem Mix

Average Packet Content 25 seeds

£1.00 £1.99 SAVE 50%

Marigold French Seeds - Boy-O-Boy Mix

Average Packet Content 120 seeds

£2.49

Lupin Seeds - Russell Mix

Average Packet Content 50 seeds

£1.55

Dahlia Seeds - Disco Dancer Mix

Average Packet Content 45 seeds

£1.99

Lobelia Seeds - Crystal Palace

Average Packet Content 650 seeds

£1.99

Calendula Seeds - Daisy Mix

Average Packet Content 50 seeds

£1.75

Antirrhinum Seeds - Illumination Mix

Average Packet Content 2400 seeds

£1.99

Cosmea Seeds - Brightness Mix

Average Packet Content 100 seeds

£2.99

Lobelia Seeds - String of Pearls

Average Packet Content 650 seeds

£1.99

Sweet Pea Seeds - True Fragrance

Average Packet Content 25 Seeds

£2.49

Nasturtium Seeds - Dayglow Mix

Average Packet Content 35 seeds

£1.99

Cornflower Seeds - Polka Dot Mix

Average Packet Content 350 seeds

£1.55

Pansy Seeds - Giant Fancy Mix

Average Packet Content 250 seeds

£1.99

Impatiens Seeds - Super Hybrid Mix

Average Packet Content 60 seeds

£2.79

Zinnia Seeds - Fireworks Mix

Average Packet Content 120 seeds

£1.99

Nicotiana Seeds - Evening Fragrance Mix

Average Packet Content 1000 seeds

£1.99

Sunflower Seeds - Waooh!

Packet Content 20 seeds

£1.99

Cornflower Seeds - Classic Fantastic

Average Packet Content 200 Seeds

£1.75

Cosmos Seeds - Rubies in Sunshine

Average Packet Content 25 seeds

£3.49

Love-in-a-Mist Seeds - Persian Jewels Mix

Average Packet Content 750 seeds

£1.99
Page 1 of 11
317 items
  • You're on page 1
  • 2
  • 3
  • 4
  • 5

Flowers to sow in April, directly in their final flowering position, include sweet peas. April is also the time to plant out your autumn-sown sweet pea seedlings. 

Depending on the variety, hardy annuals can be sown either indoors or outdoors, following the instructions on the packet. Half-hardy flowers can be sown in trays and kept on a windowsill or in the greenhouse. Browse through our range and pick your favourites! 

Take a look at our propagators and propagation equipment to get the most from your seeds.

Head to our blog for more April gardening advice.

Offer code applied!

RedEye