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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) 30 Apr Frost 9 of 10 years · 20 years of data
Frost-free season 146 days 30 Apr – 23 Sep
Probability that frost is over

10% = Half of years are frost-free by this date. More about frost & season →

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Vegetables

Plant Sow indoors Transplant Direct sow
Date Growing timeGrow. time Date Rel. frost Date Rel. frost
Cauliflower
Brassica oleracea (Botrytis-gruppen)
Greenhouse
17 – 31 Mar
5-7 wk
5 May
1 wk after
21 Apr
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
5 – 19 Apr
4-6 wk
17 May
3 wk after
26 Apr
Vid frost
Chili pepper
Capsicum annuum
Season too short
11 Mar – 8 Apr
8-12 wk
3 Jun
5 wk after
Kale
Brassica oleracea (Curly Kale-gruppen)
16 Feb – 2 Mar
5-7 wk
6 Apr
2 wk before
22 Apr
Vid frost
Cucumber
Cucumis sativus
Season too short
6 – 13 May
3-4 wk
3 Jun
5 wk after
Florence Fennel
Foeniculum vulgare
Season too short
29 Apr – 6 May
4-5 wk
3 Jun
5 wk after
13 May
2 wk after
Butter bean
Phaseolus lunatus
Season too short
15 – 22 May
3-4 wk
12 Jun
6 wk after
Onion
Allium cepa (Cepa-gruppen)
5 Feb – 5 Mar
8-12 wk
30 Apr
Vid frost
13 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
Season too short
30 Apr
Sweetcorn
Zea mays
Season too short
4 – 11 May
3-4 wk
1 Jun
5 wk after
Chard
Beta vulgaris (Flavescens-gruppen)
Fleece
21 – 28 Apr
3-4 wk
19 May
3 wk after
6 May
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
22 Apr
Vid frost
Cavolo nero
Brassica oleracea (Palm Kale-gruppen)
16 Feb – 2 Mar
5-7 wk
6 Apr
2 wk before
22 Apr
Vid frost
Potato
Solanum tuberosum
Greenhouse
16 – 30 Mar
4-6 wk
27 Apr
27 Apr
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
16 Feb – 2 Mar
5-7 wk
6 Apr
2 wk before
26 Apr
Vid frost
Pumpkin
Cucurbita pepo
Season too short
6 – 13 May
3-4 wk
3 Jun
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Fleece
21 – 28 Apr
3-4 wk
19 May
3 wk after
6 May
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
5 – 19 Apr
4-6 wk
17 May
3 wk after
Lettuce
Lactuca sativa
26 Mar – 2 Apr
3-4 wk
23 Apr
1 wk before
26 Apr
Vid frost
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
12 – 26 Mar
4-6 wk
23 Apr
1 wk before
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
Fleece
27 Mar – 10 Apr
2-4 wk
24 Apr
1 wk before
24 Apr
1 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Fleece
27 Apr
Spinach
Spinacia oleracea
18 – 25 Mar
3-4 wk
15 Apr
1 wk before
17 Apr
Vid frost
Sweet potato
Ipomoea batatas
18 May – 1 Jun
4-6 wk
29 Jun
7 wk after
Tomato
Solanum lycopersicum
Season too short
1 – 15 Apr
6-8 wk
27 May
4 wk after
Tomatillo
Physalis ixocarpa
French bean
Phaseolus vulgaris
Greenhouse
29 Apr – 13 May
2-4 wk
27 May
4 wk after
13 May
2 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
5 – 19 Apr
4-6 wk
17 May
3 wk after
Pea
Pisum sativum
18 – 25 Mar
3-4 wk
15 Apr
1 wk before
26 Apr
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
20 Apr – 4 May
4-6 wk
1 Jun
5 wk after
Lemon balm
Melissa officinalis
19 Feb – 5 Mar
8-10 wk
30 Apr
Vid frost
25 May
4 wk after
Dill
Anethum graveolens
26 Apr
Vid frost
Chives
Allium schoenoprasum
9 – 23 Feb
6-8 wk
6 Apr
2 wk before
26 Apr
Vid frost
Spearmint
Mentha spicata
21 Jan – 18 Feb
8-12 wk
15 Apr
1 wk before
25 May
4 wk after
Coriander
Coriandrum sativum
13 May
2 wk after
Sage
Salvia officinalis
Fleece
10 – 24 Mar
8-10 wk
19 May
3 wk after
Thyme
Thymus vulgaris
8 – 22 Mar
8-10 wk
17 May
3 wk after
Oregano
Origanum vulgare
11 – 25 Mar
6-8 wk
6 May
1 wk after
25 May
4 wk after
Parsley
Petroselinum crispum
18 Feb – 4 Mar
6-8 wk
15 Apr
1 wk before
26 Apr
Vid frost
Rosemary
Salvia rosmarinus
Greenhouse
27 Jan – 24 Feb
10-14 wk
5 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
13 – 20 May
3-4 wk
10 Jun
6 wk after
Cornflower
Centaurea cyanus
15 Apr
1 wk before
26 Apr
Vid frost
Statice
Limonium sinuatum
Season too short
18 Mar – 1 Apr
8-10 wk
27 May
4 wk after
Sweet William
Dianthus barbatus
18 Feb – 4 Mar
6-8 wk
15 Apr
1 wk before
8 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Season too short
1 – 15 Apr
6-8 wk
27 May
4 wk after
1 Jun
5 wk after
Dahlia
Dahlia × pinnata
Greenhouse
24 Mar – 7 Apr
6-8 wk
19 May
3 wk after
Dahlia (tubers)
Dahlia × pinnata
Season too short
11 Mar – 8 Apr
4-8 wk
6 May
1 wk after
6 May
1 wk after
Foxglove
Digitalis purpurea
4 – 18 Feb
8-10 wk
15 Apr
1 wk before
13 May
2 wk after
Busy lizzie
Impatiens walleriana
Season too short
11 Mar – 8 Apr
8-12 wk
3 Jun
5 wk after
Creeping zinnia
Sanvitalia procumbens
Greenhouse
1 – 15 Apr
6-8 wk
27 May
4 wk after
Hyacinth bean
Dolichos lablab
Season too short
29 Apr – 13 May
4-6 wk
10 Jun
6 wk after
Chinese lantern
Physalis alkekengi
Greenhouse
24 Feb – 10 Mar
8-10 wk
5 May
1 wk after
Love in a mist
Nigella damascena
26 Apr
Vid frost
Strawflower
Xerochrysum bracteatum
Season too short
1 – 15 Apr
6-8 wk
27 May
4 wk after
1 Jun
5 wk after
Tall verbena
Verbena bonariensis
Greenhouse
10 Feb – 10 Mar
8-12 wk
5 May
1 wk after
Cardoon
Cynara cardunculus
Season too short
4 Mar – 1 Apr
8-12 wk
27 May
4 wk after
Regal-foxtail
Ptilotus nobilis
Season too short
11 Mar – 8 Apr
8-12 wk
3 Jun
5 wk after
Globe amaranth
Gomphrena globosa
Season too short
8 – 22 Apr
6-8 wk
3 Jun
5 wk after
Corn poppy
Papaver rhoeas
26 Apr
Vid frost
Snapdragon
Antirrhinum majus
29 Jan – 26 Feb
8-12 wk
23 Apr
1 wk before
8 May
1 wk after
Flossflower
Ageratum houstonianum
Season too short
25 Mar – 8 Apr
8-10 wk
3 Jun
5 wk after
Sweet pea
Lathyrus odoratus
18 Feb – 11 Mar
5-8 wk
15 Apr
1 wk before
Stock
Matthiola incana
26 Feb – 12 Mar
6-8 wk
23 Apr
1 wk before
13 May
2 wk after
Wormwood
Artemisia absinthium
18 Feb – 4 Mar
6-8 wk
15 Apr
1 wk before
13 May
2 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
22 Apr – 6 May
4-6 wk
3 Jun
5 wk after
Pansy
Viola × wittrockiana
26 Jan – 9 Feb
8-10 wk
6 Apr
2 wk before
8 May
1 wk after
Petunia
Petunia
Season too short
4 Mar – 1 Apr
8-12 wk
27 May
4 wk after
Scabious
Scabiosa atropurpurea
Greenhouse
10 – 24 Mar
6-8 wk
5 May
1 wk after
13 May
2 wk after
Zinnia
Zinnia elegans
Season too short
15 – 29 Apr
4-6 wk
27 May
4 wk after
Common morning glory
Ipomoea purpurea
Season too short
29 Apr – 13 May
3-5 wk
3 Jun
5 wk after
Cosmos
Cosmos bipinnatus
Season too short
15 – 29 Apr
4-6 wk
27 May
4 wk after
13 May
2 wk after
Scarlet milkweed
Asclepias curassavica
Season too short
18 Mar – 15 Apr
8-12 wk
10 Jun
6 wk after
Bee balm
Monarda didyma
5 Feb – 5 Mar
8-12 wk
30 Apr
Vid frost
25 May
4 wk after
Yarrow
Achillea millefolium
18 Feb – 4 Mar
6-8 wk
15 Apr
1 wk before
13 May
2 wk after
Safflower
Carthamus tinctorius
15 Apr
1 wk before
26 Apr
Vid frost
Iceland poppy
Papaver nudicaule
9 – 23 Feb
6-8 wk
6 Apr
2 wk before
22 Apr
Vid frost
Bishop's flower
Ammi majus
30 Mar – 13 Apr
4-6 wk
11 May
1 wk after
13 May
2 wk after
Drumsticks
Pycnosorus globosus
Season too short
11 – 25 Mar
10-12 wk
3 Jun
5 wk after
Sunflower
Helianthus annuus
Season too short
29 Apr – 6 May
3-4 wk
27 May
4 wk after
6 May
1 wk after
China aster
Callistephus chinensis
Season too short
1 – 15 Apr
6-8 wk
27 May
4 wk after
13 May
2 wk after
Annual phlox
Phlox drummondii
Fleece
1 – 15 Apr
6-8 wk
27 May
4 wk after
25 May
4 wk after
Hollyhock
Alcea rosea
18 Feb – 4 Mar
6-8 wk
15 Apr
1 wk before
13 May
2 wk after
Delphinium
Delphinium elatum
22 Feb – 22 Mar
8-12 wk
17 May
3 wk after
25 May
4 wk after
African marigold
Tagetes erecta
Season too short
1 – 15 Apr
6-8 wk
27 May
4 wk after
Black-eyed Susan
Rudbeckia hirta
Fleece
24 Mar – 7 Apr
6-8 wk
19 May
3 wk after
25 May
4 wk after
Woodland sage
Salvia nemorosa
25 Feb – 11 Mar
8-10 wk
6 May
1 wk after
25 May
4 wk after
Black-eyed susan vine
Thunbergia alata
Season too short
25 Mar – 22 Apr
6-10 wk
3 Jun
5 wk after
California goldenpoppy
Eschscholzia californica
26 Apr
Vid frost
Painted tongue
Salpiglossis sinuata
Season too short
18 Mar – 1 Apr
8-10 wk
27 May
4 wk after
Water forget-me-not
Myosotis scorpioides
18 Feb – 4 Mar
6-8 wk
15 Apr
1 wk before
13 May
2 wk after
Current date Soon Date passed