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-0.5°
Last 24h: Slight frost recorded tonight at 01:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 5 May Frost 3 of 4 years · 20 years of data
Frost-free season 150 days 5 May – 2 Oct
Probability that frost is over

25% = Half of years are frost-free by this date. More about frost & season →

Custom date

Vegetables

Plant Sow indoors Transplant Direct sow
Date Growing timeGrow. time Date Rel. frost Date Rel. frost
Cauliflower
Brassica oleracea (Botrytis-gruppen)
Greenhouse
22 Mar – 5 Apr
5-7 wk
10 May
1 wk after
26 Apr
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
10 – 24 Apr
4-6 wk
22 May
3 wk after
1 May
Vid frost
Chili pepper
Capsicum annuum
Season too short
16 Mar – 13 Apr
8-12 wk
8 Jun
5 wk after
Kale
Brassica oleracea (Curly Kale-gruppen)
21 Feb – 7 Mar
5-7 wk
11 Apr
2 wk before
27 Apr
Vid frost
Cucumber
Cucumis sativus
Season too short
11 – 18 May
3-4 wk
8 Jun
5 wk after
Florence Fennel
Foeniculum vulgare
Season too short
4 – 11 May
4-5 wk
8 Jun
5 wk after
18 May
2 wk after
Butter bean
Phaseolus lunatus
Season too short
20 – 27 May
3-4 wk
17 Jun
6 wk after
Onion
Allium cepa (Cepa-gruppen)
10 Feb – 10 Mar
8-12 wk
5 May
Vid frost
18 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
Season too short
5 May
Sweetcorn
Zea mays
Season too short
9 – 16 May
3-4 wk
6 Jun
5 wk after
Chard
Beta vulgaris (Flavescens-gruppen)
Fleece
26 Apr – 3 May
3-4 wk
24 May
3 wk after
11 May
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
27 Apr
Vid frost
Cavolo nero
Brassica oleracea (Palm Kale-gruppen)
21 Feb – 7 Mar
5-7 wk
11 Apr
2 wk before
27 Apr
Vid frost
Potato
Solanum tuberosum
Greenhouse
21 Mar – 4 Apr
4-6 wk
2 May
2 May
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
21 Feb – 7 Mar
5-7 wk
11 Apr
2 wk before
1 May
Vid frost
Pumpkin
Cucurbita pepo
Season too short
11 – 18 May
3-4 wk
8 Jun
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Fleece
26 Apr – 3 May
3-4 wk
24 May
3 wk after
11 May
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
10 – 24 Apr
4-6 wk
22 May
3 wk after
Lettuce
Lactuca sativa
31 Mar – 7 Apr
3-4 wk
28 Apr
1 wk before
1 May
Vid frost
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
17 – 31 Mar
4-6 wk
28 Apr
1 wk before
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
Fleece
1 – 15 Apr
2-4 wk
29 Apr
1 wk before
29 Apr
1 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Fleece
2 May
Spinach
Spinacia oleracea
23 – 30 Mar
3-4 wk
20 Apr
1 wk before
22 Apr
Vid frost
Sweet potato
Ipomoea batatas
23 May – 6 Jun
4-6 wk
4 Jul
7 wk after
Tomato
Solanum lycopersicum
Season too short
6 – 20 Apr
6-8 wk
1 Jun
4 wk after
Tomatillo
Physalis ixocarpa
French bean
Phaseolus vulgaris
Greenhouse
4 – 18 May
2-4 wk
1 Jun
4 wk after
18 May
2 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
10 – 24 Apr
4-6 wk
22 May
3 wk after
Pea
Pisum sativum
23 – 30 Mar
3-4 wk
20 Apr
1 wk before
1 May
Vid frost
Current date Soon Date passed

Herbs

Plant Sow indoors Transplant Direct sow
Date Growing timeGrow. time Date Rel. frost Date Rel. frost
Basil
Ocimum basilicum
Season too short
25 Apr – 9 May
4-6 wk
6 Jun
5 wk after
Lemon balm
Melissa officinalis
24 Feb – 10 Mar
8-10 wk
5 May
Vid frost
30 May
4 wk after
Dill
Anethum graveolens
1 May
Vid frost
Chives
Allium schoenoprasum
14 – 28 Feb
6-8 wk
11 Apr
2 wk before
1 May
Vid frost
Spearmint
Mentha spicata
26 Jan – 23 Feb
8-12 wk
20 Apr
1 wk before
30 May
4 wk after
Coriander
Coriandrum sativum
18 May
2 wk after
Sage
Salvia officinalis
Fleece
15 – 29 Mar
8-10 wk
24 May
3 wk after
Thyme
Thymus vulgaris
13 – 27 Mar
8-10 wk
22 May
3 wk after
Oregano
Origanum vulgare
16 – 30 Mar
6-8 wk
11 May
1 wk after
30 May
4 wk after
Parsley
Petroselinum crispum
23 Feb – 9 Mar
6-8 wk
20 Apr
1 wk before
1 May
Vid frost
Rosemary
Salvia rosmarinus
Greenhouse
1 Feb – 1 Mar
10-14 wk
10 May
1 wk after
Current date Soon Date passed

Annual flowers

Plant Sow indoors Transplant Direct sow
Date Growing timeGrow. time Date Rel. frost Date Rel. frost
Morning glory
Ipomoea tricolor
Season too short
18 – 25 May
3-4 wk
15 Jun
6 wk after
Cornflower
Centaurea cyanus
20 Apr
1 wk before
1 May
Vid frost
Statice
Limonium sinuatum
Season too short
23 Mar – 6 Apr
8-10 wk
1 Jun
4 wk after
Sweet William
Dianthus barbatus
23 Feb – 9 Mar
6-8 wk
20 Apr
1 wk before
13 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Season too short
6 – 20 Apr
6-8 wk
1 Jun
4 wk after
6 Jun
5 wk after
Dahlia
Dahlia × pinnata
Greenhouse
29 Mar – 12 Apr
6-8 wk
24 May
3 wk after
Dahlia (tubers)
Dahlia × pinnata
Season too short
16 Mar – 13 Apr
4-8 wk
11 May
1 wk after
11 May
1 wk after
Foxglove
Digitalis purpurea
9 – 23 Feb
8-10 wk
20 Apr
1 wk before
18 May
2 wk after
Busy lizzie
Impatiens walleriana
Season too short
16 Mar – 13 Apr
8-12 wk
8 Jun
5 wk after
Creeping zinnia
Sanvitalia procumbens
Greenhouse
6 – 20 Apr
6-8 wk
1 Jun
4 wk after
Hyacinth bean
Dolichos lablab
Season too short
4 – 18 May
4-6 wk
15 Jun
6 wk after
Chinese lantern
Physalis alkekengi
Greenhouse
1 – 15 Mar
8-10 wk
10 May
1 wk after
Love in a mist
Nigella damascena
1 May
Vid frost
Strawflower
Xerochrysum bracteatum
Season too short
6 – 20 Apr
6-8 wk
1 Jun
4 wk after
6 Jun
5 wk after
Tall verbena
Verbena bonariensis
Greenhouse
15 Feb – 15 Mar
8-12 wk
10 May
1 wk after
Cardoon
Cynara cardunculus
Season too short
9 Mar – 6 Apr
8-12 wk
1 Jun
4 wk after
Regal-foxtail
Ptilotus nobilis
Season too short
16 Mar – 13 Apr
8-12 wk
8 Jun
5 wk after
Globe amaranth
Gomphrena globosa
Season too short
13 – 27 Apr
6-8 wk
8 Jun
5 wk after
Corn poppy
Papaver rhoeas
1 May
Vid frost
Snapdragon
Antirrhinum majus
3 Feb – 3 Mar
8-12 wk
28 Apr
1 wk before
13 May
1 wk after
Flossflower
Ageratum houstonianum
Season too short
30 Mar – 13 Apr
8-10 wk
8 Jun
5 wk after
Sweet pea
Lathyrus odoratus
23 Feb – 16 Mar
5-8 wk
20 Apr
1 wk before
Stock
Matthiola incana
3 – 17 Mar
6-8 wk
28 Apr
1 wk before
18 May
2 wk after
Wormwood
Artemisia absinthium
23 Feb – 9 Mar
6-8 wk
20 Apr
1 wk before
18 May
2 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
27 Apr – 11 May
4-6 wk
8 Jun
5 wk after
Pansy
Viola × wittrockiana
31 Jan – 14 Feb
8-10 wk
11 Apr
2 wk before
13 May
1 wk after
Petunia
Petunia
Season too short
9 Mar – 6 Apr
8-12 wk
1 Jun
4 wk after
Scabious
Scabiosa atropurpurea
Greenhouse
15 – 29 Mar
6-8 wk
10 May
1 wk after
18 May
2 wk after
Zinnia
Zinnia elegans
Season too short
20 Apr – 4 May
4-6 wk
1 Jun
4 wk after
Common morning glory
Ipomoea purpurea
Season too short
4 – 18 May
3-5 wk
8 Jun
5 wk after
Cosmos
Cosmos bipinnatus
Season too short
20 Apr – 4 May
4-6 wk
1 Jun
4 wk after
18 May
2 wk after
Scarlet milkweed
Asclepias curassavica
Season too short
23 Mar – 20 Apr
8-12 wk
15 Jun
6 wk after
Bee balm
Monarda didyma
10 Feb – 10 Mar
8-12 wk
5 May
Vid frost
30 May
4 wk after
Yarrow
Achillea millefolium
23 Feb – 9 Mar
6-8 wk
20 Apr
1 wk before
18 May
2 wk after
Safflower
Carthamus tinctorius
20 Apr
1 wk before
1 May
Vid frost
Iceland poppy
Papaver nudicaule
14 – 28 Feb
6-8 wk
11 Apr
2 wk before
27 Apr
Vid frost
Bishop's flower
Ammi majus
4 – 18 Apr
4-6 wk
16 May
1 wk after
18 May
2 wk after
Drumsticks
Pycnosorus globosus
Season too short
16 – 30 Mar
10-12 wk
8 Jun
5 wk after
Sunflower
Helianthus annuus
Season too short
4 – 11 May
3-4 wk
1 Jun
4 wk after
11 May
1 wk after
China aster
Callistephus chinensis
Season too short
6 – 20 Apr
6-8 wk
1 Jun
4 wk after
18 May
2 wk after
Annual phlox
Phlox drummondii
Fleece
6 – 20 Apr
6-8 wk
1 Jun
4 wk after
30 May
4 wk after
Hollyhock
Alcea rosea
23 Feb – 9 Mar
6-8 wk
20 Apr
1 wk before
18 May
2 wk after
Delphinium
Delphinium elatum
27 Feb – 27 Mar
8-12 wk
22 May
3 wk after
30 May
4 wk after
African marigold
Tagetes erecta
Season too short
6 – 20 Apr
6-8 wk
1 Jun
4 wk after
Black-eyed Susan
Rudbeckia hirta
Fleece
29 Mar – 12 Apr
6-8 wk
24 May
3 wk after
30 May
4 wk after
Woodland sage
Salvia nemorosa
2 – 16 Mar
8-10 wk
11 May
1 wk after
30 May
4 wk after
Black-eyed susan vine
Thunbergia alata
Season too short
30 Mar – 27 Apr
6-10 wk
8 Jun
5 wk after
California goldenpoppy
Eschscholzia californica
1 May
Vid frost
Painted tongue
Salpiglossis sinuata
Season too short
23 Mar – 6 Apr
8-10 wk
1 Jun
4 wk after
Water forget-me-not
Myosotis scorpioides
23 Feb – 9 Mar
6-8 wk
20 Apr
1 wk before
18 May
2 wk after
Current date Soon Date passed