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Rel. frost
Last spring frost (0°C) 3 Feb Frost 9 of 10 years · 20 years of data
Frost-free season 290 days 3 Feb – 20 Nov
Probability that frost is over

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