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Rel. frost
Last spring frost (0°C) 26 Feb Frost 9 of 10 years · 20 years of data
Frost-free season 262 days 26 Feb – 15 Nov
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)
7 – 21 Feb
5-7 wk
28 Mar
5 wk after
22 Feb
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
1 – 15 Feb
4-6 wk
15 Mar
3 wk after
22 Feb
1 wk before
Chili pepper
Capsicum annuum
29 Jan – 26 Feb
8-12 wk
23 Apr
10 wk after
Kale
Brassica oleracea (Curly Kale-gruppen)
15 – 29 Dec
5-7 wk
2 Feb
4 wk before
18 Feb
2 wk before
Cucumber
Cucumis sativus
26 Mar – 2 Apr
3-4 wk
23 Apr
10 wk after
Florence Fennel
Foeniculum vulgare
19 – 26 Mar
4-5 wk
23 Apr
10 wk after
8 Apr
6 wk after
Butter bean
Phaseolus lunatus
Season too short
11 – 18 Mar
3-4 wk
8 Apr
6 wk after
Onion
Allium cepa (Cepa-gruppen)
4 Dec – 1 Jan
8-12 wk
26 Feb
Vid frost
11 Mar
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
Season too short
13 Feb
2 wk before
Sweetcorn
Zea mays
Season too short
3 – 10 Mar
3-4 wk
31 Mar
5 wk after
Chard
Beta vulgaris (Flavescens-gruppen)
28 Feb – 7 Mar
3-4 wk
28 Mar
5 wk after
11 Mar
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
18 Feb
2 wk before
Cavolo nero
Brassica oleracea (Palm Kale-gruppen)
15 – 29 Dec
5-7 wk
2 Feb
4 wk before
18 Feb
2 wk before
Potato
Solanum tuberosum
Season too short
26 Dec – 9 Jan
4-6 wk
6 Feb
3 wk before
6 Feb
3 wk before
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
15 – 29 Dec
5-7 wk
2 Feb
4 wk before
22 Feb
1 wk before
Pumpkin
Cucurbita pepo
26 Mar – 2 Apr
3-4 wk
23 Apr
10 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
28 Feb – 7 Mar
3-4 wk
28 Mar
5 wk after
11 Mar
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
1 – 15 Feb
4-6 wk
15 Mar
3 wk after
Lettuce
Lactuca sativa
22 – 29 Jan
3-4 wk
19 Feb
1 wk before
22 Feb
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
8 – 22 Jan
4-6 wk
19 Feb
1 wk before
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
Season too short
14 – 28 Dec
2-4 wk
11 Jan
7 wk before
11 Jan
7 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Season too short
23 Jan
5 wk before
Spinach
Spinacia oleracea
14 – 21 Jan
3-4 wk
11 Feb
3 wk before
13 Feb
3 wk before
Sweet potato
Ipomoea batatas
16 – 30 Mar
4-6 wk
27 Apr
11 wk after
Tomato
Solanum lycopersicum
18 Feb – 4 Mar
6-8 wk
15 Apr
8 wk after
Tomatillo
Physalis ixocarpa
French bean
Phaseolus vulgaris
18 Mar – 1 Apr
2-4 wk
15 Apr
8 wk after
8 Apr
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
1 – 15 Feb
4-6 wk
15 Mar
3 wk after
Pea
Pisum sativum
14 – 21 Jan
3-4 wk
11 Feb
3 wk before
22 Feb
1 wk before
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
17 Feb – 3 Mar
4-6 wk
31 Mar
5 wk after
Lemon balm
Melissa officinalis
18 Dec – 1 Jan
8-10 wk
26 Feb
Vid frost
23 Mar
4 wk after
Dill
Anethum graveolens
22 Feb
1 wk before
Chives
Allium schoenoprasum
8 – 22 Dec
6-8 wk
2 Feb
4 wk before
22 Feb
1 wk before
Spearmint
Mentha spicata
19 Nov – 17 Dec
8-12 wk
11 Feb
3 wk before
23 Mar
4 wk after
Coriander
Coriandrum sativum
11 Mar
2 wk after
Sage
Salvia officinalis
17 – 31 Jan
8-10 wk
28 Mar
5 wk after
Thyme
Thymus vulgaris
4 – 18 Jan
8-10 wk
15 Mar
3 wk after
Oregano
Origanum vulgare
7 – 21 Jan
6-8 wk
4 Mar
1 wk after
23 Mar
4 wk after
Parsley
Petroselinum crispum
17 – 31 Dec
6-8 wk
11 Feb
3 wk before
22 Feb
1 wk before
Rosemary
Salvia rosmarinus
20 Dec – 17 Jan
10-14 wk
28 Mar
5 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
Fleece
6 – 13 Apr
3-4 wk
4 May
10 wk after
Cornflower
Centaurea cyanus
11 Feb
3 wk before
22 Feb
1 wk before
Statice
Limonium sinuatum
4 – 18 Feb
8-10 wk
15 Apr
8 wk after
Sweet William
Dianthus barbatus
17 – 31 Dec
6-8 wk
11 Feb
3 wk before
6 Mar
1 wk after
Snow-on-the-mountain
Euphorbia marginata
18 Feb – 4 Mar
6-8 wk
15 Apr
8 wk after
8 May
11 wk after
Dahlia
Dahlia × pinnata
13 – 27 Feb
6-8 wk
10 Apr
7 wk after
Dahlia (tubers)
Dahlia × pinnata
Season too short
31 Dec – 28 Jan
4-8 wk
25 Feb
25 Feb
Foxglove
Digitalis purpurea
3 – 17 Dec
8-10 wk
11 Feb
3 wk before
11 Mar
2 wk after
Busy lizzie
Impatiens walleriana
29 Jan – 26 Feb
8-12 wk
23 Apr
10 wk after
Creeping zinnia
Sanvitalia procumbens
18 Feb – 4 Mar
6-8 wk
15 Apr
8 wk after
Hyacinth bean
Dolichos lablab
Greenhouse
12 – 26 Mar
4-6 wk
23 Apr
8 wk after
Chinese lantern
Physalis alkekengi
17 – 31 Jan
8-10 wk
28 Mar
5 wk after
Love in a mist
Nigella damascena
22 Feb
1 wk before
Strawflower
Xerochrysum bracteatum
18 Feb – 4 Mar
6-8 wk
15 Apr
8 wk after
8 May
11 wk after
Tall verbena
Verbena bonariensis
3 – 31 Jan
8-12 wk
28 Mar
5 wk after
Cardoon
Cynara cardunculus
Fleece
14 Jan – 11 Feb
8-12 wk
8 Apr
6 wk after
Regal-foxtail
Ptilotus nobilis
29 Jan – 26 Feb
8-12 wk
23 Apr
10 wk after
Globe amaranth
Gomphrena globosa
26 Feb – 12 Mar
6-8 wk
23 Apr
10 wk after
Corn poppy
Papaver rhoeas
22 Feb
1 wk before
Snapdragon
Antirrhinum majus
27 Nov – 25 Dec
8-12 wk
19 Feb
1 wk before
6 Mar
1 wk after
Flossflower
Ageratum houstonianum
12 – 26 Feb
8-10 wk
23 Apr
10 wk after
Sweet pea
Lathyrus odoratus
17 Dec – 7 Jan
5-8 wk
11 Feb
3 wk before
Stock
Matthiola incana
25 Dec – 8 Jan
6-8 wk
19 Feb
1 wk before
11 Mar
2 wk after
Wormwood
Artemisia absinthium
17 – 31 Dec
6-8 wk
11 Feb
3 wk before
11 Mar
2 wk after
Mexican sunflower
Tithonia rotundifolia
12 – 26 Mar
4-6 wk
23 Apr
10 wk after
Pansy
Viola × wittrockiana
24 Nov – 8 Dec
8-10 wk
2 Feb
4 wk before
6 Mar
1 wk after
Petunia
Petunia
21 Jan – 18 Feb
8-12 wk
15 Apr
8 wk after
Scabious
Scabiosa atropurpurea
31 Jan – 14 Feb
6-8 wk
28 Mar
5 wk after
8 Apr
6 wk after
Zinnia
Zinnia elegans
4 – 18 Mar
4-6 wk
15 Apr
8 wk after
Common morning glory
Ipomoea purpurea
19 Mar – 2 Apr
3-5 wk
23 Apr
10 wk after
Cosmos
Cosmos bipinnatus
4 – 18 Mar
4-6 wk
15 Apr
8 wk after
8 Apr
6 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
9 Feb – 9 Mar
8-12 wk
4 May
10 wk after
Bee balm
Monarda didyma
4 Dec – 1 Jan
8-12 wk
26 Feb
Vid frost
23 Mar
4 wk after
Yarrow
Achillea millefolium
17 – 31 Dec
6-8 wk
11 Feb
3 wk before
11 Mar
2 wk after
Safflower
Carthamus tinctorius
11 Feb
3 wk before
22 Feb
1 wk before
Iceland poppy
Papaver nudicaule
8 – 22 Dec
6-8 wk
2 Feb
4 wk before
18 Feb
2 wk before
Bishop's flower
Ammi majus
26 Jan – 9 Feb
4-6 wk
9 Mar
2 wk after
11 Mar
2 wk after
Drumsticks
Pycnosorus globosus
Fleece
29 Jan – 12 Feb
10-12 wk
23 Apr
8 wk after
Sunflower
Helianthus annuus
18 – 25 Mar
3-4 wk
15 Apr
8 wk after
23 Mar
4 wk after
China aster
Callistephus chinensis
18 Feb – 4 Mar
6-8 wk
15 Apr
8 wk after
8 Apr
6 wk after
Annual phlox
Phlox drummondii
6 – 20 Feb
6-8 wk
3 Apr
6 wk after
8 Apr
6 wk after
Hollyhock
Alcea rosea
17 – 31 Dec
6-8 wk
11 Feb
3 wk before
11 Mar
2 wk after
Delphinium
Delphinium elatum
21 Dec – 18 Jan
8-12 wk
15 Mar
3 wk after
23 Mar
4 wk after
African marigold
Tagetes erecta
18 Feb – 4 Mar
6-8 wk
15 Apr
8 wk after
Black-eyed Susan
Rudbeckia hirta
31 Jan – 14 Feb
6-8 wk
28 Mar
5 wk after
8 Apr
6 wk after
Woodland sage
Salvia nemorosa
24 Dec – 7 Jan
8-10 wk
4 Mar
1 wk after
23 Mar
4 wk after
Black-eyed susan vine
Thunbergia alata
12 Feb – 12 Mar
6-10 wk
23 Apr
10 wk after
California goldenpoppy
Eschscholzia californica
22 Feb
1 wk before
Painted tongue
Salpiglossis sinuata
4 – 18 Feb
8-10 wk
15 Apr
8 wk after
Water forget-me-not
Myosotis scorpioides
17 – 31 Dec
6-8 wk
11 Feb
3 wk before
11 Mar
2 wk after
Current date Soon Date passed