What to sow and plant in April — UK
April is peak sowing and planting, but late frosts are still a real risk in most of the UK. Keep fleece to hand and hold tender plants back until the nights warm up.
Sow in April
Radish
Raphanus sativus
Cucumber
Cucumis sativus
Courgette
Cucurbita pepo
Runner Bean
Phaseolus coccineus
Garden Pea
Pisum sativum
Spinach
Spinacia oleracea
Swiss Chard
Beta vulgaris
Kale
Brassica oleracea
Broccoli
Brassica oleracea
Pumpkin
Cucurbita maxima
Butternut Squash
Cucurbita moschata
Spring Onion
Allium fistulosum
Rocket
Eruca sativa
Basil
Ocimum basilicum
Coriander
Coriandrum sativum
Dill
Anethum graveolens
Fennel
Foeniculum vulgare
Sunflower
Helianthus annuus
Cosmos
Cosmos bipinnatus
Nasturtium
Tropaeolum majus
Nigella
Nigella damascena
Cornflower
Centaurea cyanus
Zinnia
Zinnia elegans
Sweet Alyssum
Lobularia maritima
Larkspur
Consolida ajacis
Climbing Nasturtium
Tropaeolum majus (climbing)
Kohlrabi
Brassica oleracea (Gongylodes)
Pak Choi
Brassica rapa chinensis
Sugar Snap Pea
Pisum sativum
Mangetout
Pisum sativum macrocarpon
Sweet Marjoram
Origanum majorana
Salsify
Tragopogon porrifolius
Purple Sprouting Broccoli
Brassica oleracea italica
Summer Savory
Satureja hortensis
Chervil
Anthriscus cerefolium
Perilla / Shiso
Perilla frutescens
Salad Burnet
Sanguisorba minor
Plant out in April
Lettuce
Lactuca sativa
Asparagus
Asparagus officinalis
Mint
Mentha spicata
Bay
Laurus nobilis
Lemon Balm
Melissa officinalis
Lavender
Lavandula angustifolia
Fig
Ficus carica
Cranberry
Vaccinium oxycoccos
Foxglove
Digitalis purpurea
Hardy Geranium
Geranium
Hosta
Hosta
Lupin
Lupinus
Delphinium
Delphinium
Echinacea
Echinacea purpurea
Rudbeckia
Rudbeckia fulgida
Michaelmas Daisy
Symphyotrichum
Phlox paniculata
Phlox paniculata
Sedum
Hylotelephium
Heuchera
Heuchera
Buddleia
Buddleja davidii
Clematis
Clematis
Brugmansia
Brugmansia
Hydrangea
Hydrangea macrophylla
Japanese Anemone
Anemone x hybrida
Lady's Mantle
Alchemilla mollis
Gladiolus
Gladiolus
Crocosmia
Crocosmia 'Lucifer'
African Lily
Agapanthus
Penstemon
Penstemon
Perennial Salvia 'Caradonna'
Salvia nemorosa 'Caradonna'
Catmint
Nepeta x faassenii
Lamb's Ear
Stachys byzantina
Astrantia
Astrantia major
Astilbe
Astilbe
Lungwort
Pulmonaria
Siberian Bugloss
Brunnera macrophylla
Geum
Geum
Siberian Iris
Iris sibirica
Wallflower 'Bowles' Mauve'
Erysimum 'Bowles' Mauve'
Bellflower
Campanula
Garden Pinks
Dianthus
Pasque Flower
Pulsatilla vulgaris
Mexican Fleabane
Erigeron karvinskianus
Mexican Orange Blossom
Choisya ternata
Hebe
Hebe
California Lilac
Ceanothus
Summer Jasmine
Jasminum officinale
Chocolate Vine
Akebia quinata
Globe Artichoke
Cynara scolymus
Lovage
Levisticum officinale
Sea Kale
Crambe maritima
Comfrey
Symphytum officinale
Kiwi Fruit
Actinidia deliciosa
Peruvian Lily
Alstroemeria
Calla Lily
Zantedeschia aethiopica
Pineapple Lily
Eucomis
Angel's Fishing Rod
Dierama pulcherrimum
Columbine
Aquilegia vulgaris
Yarrow
Achillea millefolium
Globe Thistle
Echinops ritro
Sea Holly
Eryngium
Red Hot Poker
Kniphofia uvaria
Blazing Star
Liatris spicata
Leopard Plant
Ligularia dentata
Bee Balm
Monarda didyma
Knotweed
Persicaria amplexicaulis
Rodgersia
Rodgersia pinnata
Burnet
Sanguisorba officinalis
Scabious
Scabiosa caucasica
Meadow Rue
Thalictrum delavayi
Speedwell
Veronica spicata
Culver's Root
Veronicastrum virginicum
Glossy Abelia
Abelia x grandiflora
Escallonia
Escallonia rubra
Potato Vine
Solanum laxum
Chilean Potato Vine
Solanum crispum