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Rel. frost
Last spring frost (0°C) 12 Mar Frost 9 of 10 years · 20 years of data
Frost-free season 252 days 12 Mar – 19 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)
21 Feb – 7 Mar
5-7 wk
11 Apr
5 wk after
8 Mar
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
15 Feb – 1 Mar
4-6 wk
29 Mar
3 wk after
8 Mar
1 wk before
Chili pepper
Capsicum annuum
Fleece
12 Feb – 12 Mar
8-12 wk
7 May
8 wk after
Kale
Brassica oleracea (Curly Kale-gruppen)
29 Dec – 12 Jan
5-7 wk
16 Feb
4 wk before
4 Mar
2 wk before
Cucumber
Cucumis sativus
9 – 16 Apr
3-4 wk
7 May
10 wk after
Florence Fennel
Foeniculum vulgare
Fleece
2 – 9 Apr
4-5 wk
7 May
8 wk after
7 Apr
4 wk after
Butter bean
Phaseolus lunatus
Season too short
25 Mar – 1 Apr
3-4 wk
22 Apr
6 wk after
Onion
Allium cepa (Cepa-gruppen)
18 Dec – 15 Jan
8-12 wk
12 Mar
Vid frost
25 Mar
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
Season too short
27 Feb
2 wk before
Sweetcorn
Zea mays
Season too short
17 – 24 Mar
3-4 wk
14 Apr
5 wk after
Chard
Beta vulgaris (Flavescens-gruppen)
14 – 21 Mar
3-4 wk
11 Apr
5 wk after
25 Mar
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
4 Mar
2 wk before
Cavolo nero
Brassica oleracea (Palm Kale-gruppen)
29 Dec – 12 Jan
5-7 wk
16 Feb
4 wk before
4 Mar
2 wk before
Potato
Solanum tuberosum
Season too short
9 – 23 Jan
4-6 wk
20 Feb
3 wk before
20 Feb
3 wk before
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
29 Dec – 12 Jan
5-7 wk
16 Feb
4 wk before
8 Mar
1 wk before
Pumpkin
Cucurbita pepo
9 – 16 Apr
3-4 wk
7 May
10 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
14 – 21 Mar
3-4 wk
11 Apr
5 wk after
25 Mar
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
15 Feb – 1 Mar
4-6 wk
29 Mar
3 wk after
Lettuce
Lactuca sativa
5 – 12 Feb
3-4 wk
5 Mar
1 wk before
8 Mar
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
22 Jan – 5 Feb
4-6 wk
5 Mar
1 wk before
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
Season too short
28 Dec – 11 Jan
2-4 wk
25 Jan
7 wk before
25 Jan
7 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Season too short
6 Feb
5 wk before
Spinach
Spinacia oleracea
28 Jan – 4 Feb
3-4 wk
25 Feb
3 wk before
27 Feb
3 wk before
Sweet potato
Ipomoea batatas
30 Mar – 13 Apr
4-6 wk
11 May
11 wk after
Tomato
Solanum lycopersicum
4 – 18 Mar
6-8 wk
29 Apr
8 wk after
Tomatillo
Physalis ixocarpa
French bean
Phaseolus vulgaris
1 – 15 Apr
2-4 wk
29 Apr
8 wk after
22 Apr
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
15 Feb – 1 Mar
4-6 wk
29 Mar
3 wk after
Pea
Pisum sativum
28 Jan – 4 Feb
3-4 wk
25 Feb
3 wk before
8 Mar
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
3 – 17 Mar
4-6 wk
14 Apr
5 wk after
Lemon balm
Melissa officinalis
1 – 15 Jan
8-10 wk
12 Mar
Vid frost
6 Apr
4 wk after
Dill
Anethum graveolens
8 Mar
1 wk before
Chives
Allium schoenoprasum
22 Dec – 5 Jan
6-8 wk
16 Feb
4 wk before
8 Mar
1 wk before
Spearmint
Mentha spicata
3 – 31 Dec
8-12 wk
25 Feb
3 wk before
6 Apr
4 wk after
Coriander
Coriandrum sativum
25 Mar
2 wk after
Sage
Salvia officinalis
31 Jan – 14 Feb
8-10 wk
11 Apr
5 wk after
Thyme
Thymus vulgaris
18 Jan – 1 Feb
8-10 wk
29 Mar
3 wk after
Oregano
Origanum vulgare
21 Jan – 4 Feb
6-8 wk
18 Mar
1 wk after
6 Apr
4 wk after
Parsley
Petroselinum crispum
31 Dec – 14 Jan
6-8 wk
25 Feb
3 wk before
8 Mar
1 wk before
Rosemary
Salvia rosmarinus
3 – 31 Jan
10-14 wk
11 Apr
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
9 – 16 Apr
3-4 wk
7 May
8 wk after
Cornflower
Centaurea cyanus
25 Feb
3 wk before
8 Mar
1 wk before
Statice
Limonium sinuatum
18 Feb – 4 Mar
8-10 wk
29 Apr
8 wk after
Sweet William
Dianthus barbatus
31 Dec – 14 Jan
6-8 wk
25 Feb
3 wk before
20 Mar
1 wk after
Snow-on-the-mountain
Euphorbia marginata
4 – 18 Mar
6-8 wk
29 Apr
8 wk after
22 May
11 wk after
Dahlia
Dahlia × pinnata
27 Feb – 13 Mar
6-8 wk
24 Apr
7 wk after
Dahlia (tubers)
Dahlia × pinnata
Season too short
14 Jan – 11 Feb
4-8 wk
11 Mar
11 Mar
Foxglove
Digitalis purpurea
17 – 31 Dec
8-10 wk
25 Feb
3 wk before
25 Mar
2 wk after
Busy lizzie
Impatiens walleriana
12 Feb – 12 Mar
8-12 wk
7 May
10 wk after
Creeping zinnia
Sanvitalia procumbens
4 – 18 Mar
6-8 wk
29 Apr
8 wk after
Hyacinth bean
Dolichos lablab
Greenhouse
26 Mar – 9 Apr
4-6 wk
7 May
8 wk after
Chinese lantern
Physalis alkekengi
31 Jan – 14 Feb
8-10 wk
11 Apr
5 wk after
Love in a mist
Nigella damascena
8 Mar
1 wk before
Strawflower
Xerochrysum bracteatum
4 – 18 Mar
6-8 wk
29 Apr
8 wk after
22 May
11 wk after
Tall verbena
Verbena bonariensis
17 Jan – 14 Feb
8-12 wk
11 Apr
5 wk after
Cardoon
Cynara cardunculus
Fleece
28 Jan – 25 Feb
8-12 wk
22 Apr
6 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
12 Feb – 12 Mar
8-12 wk
7 May
8 wk after
Globe amaranth
Gomphrena globosa
Fleece
12 – 26 Mar
6-8 wk
7 May
8 wk after
Corn poppy
Papaver rhoeas
8 Mar
1 wk before
Snapdragon
Antirrhinum majus
11 Dec – 8 Jan
8-12 wk
5 Mar
1 wk before
20 Mar
1 wk after
Flossflower
Ageratum houstonianum
Fleece
26 Feb – 12 Mar
8-10 wk
7 May
8 wk after
Sweet pea
Lathyrus odoratus
31 Dec – 21 Jan
5-8 wk
25 Feb
3 wk before
Stock
Matthiola incana
8 – 22 Jan
6-8 wk
5 Mar
1 wk before
25 Mar
2 wk after
Wormwood
Artemisia absinthium
31 Dec – 14 Jan
6-8 wk
25 Feb
3 wk before
25 Mar
2 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
26 Mar – 9 Apr
4-6 wk
7 May
8 wk after
Pansy
Viola × wittrockiana
8 – 22 Dec
8-10 wk
16 Feb
4 wk before
20 Mar
1 wk after
Petunia
Petunia
4 Feb – 4 Mar
8-12 wk
29 Apr
8 wk after
Scabious
Scabiosa atropurpurea
14 – 28 Feb
6-8 wk
11 Apr
5 wk after
22 Apr
6 wk after
Zinnia
Zinnia elegans
18 Mar – 1 Apr
4-6 wk
29 Apr
8 wk after
Common morning glory
Ipomoea purpurea
2 – 16 Apr
3-5 wk
7 May
10 wk after
Cosmos
Cosmos bipinnatus
18 Mar – 1 Apr
4-6 wk
29 Apr
8 wk after
22 Apr
6 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
23 Feb – 23 Mar
8-12 wk
18 May
10 wk after
Bee balm
Monarda didyma
18 Dec – 15 Jan
8-12 wk
12 Mar
Vid frost
6 Apr
4 wk after
Yarrow
Achillea millefolium
31 Dec – 14 Jan
6-8 wk
25 Feb
3 wk before
25 Mar
2 wk after
Safflower
Carthamus tinctorius
25 Feb
3 wk before
8 Mar
1 wk before
Iceland poppy
Papaver nudicaule
22 Dec – 5 Jan
6-8 wk
16 Feb
4 wk before
4 Mar
2 wk before
Bishop's flower
Ammi majus
9 – 23 Feb
4-6 wk
23 Mar
2 wk after
25 Mar
2 wk after
Drumsticks
Pycnosorus globosus
Fleece
12 – 26 Feb
10-12 wk
7 May
8 wk after
Sunflower
Helianthus annuus
1 – 8 Apr
3-4 wk
29 Apr
8 wk after
6 Apr
4 wk after
China aster
Callistephus chinensis
4 – 18 Mar
6-8 wk
29 Apr
8 wk after
22 Apr
6 wk after
Annual phlox
Phlox drummondii
20 Feb – 6 Mar
6-8 wk
17 Apr
6 wk after
22 Apr
6 wk after
Hollyhock
Alcea rosea
31 Dec – 14 Jan
6-8 wk
25 Feb
3 wk before
25 Mar
2 wk after
Delphinium
Delphinium elatum
4 Jan – 1 Feb
8-12 wk
29 Mar
3 wk after
6 Apr
4 wk after
African marigold
Tagetes erecta
4 – 18 Mar
6-8 wk
29 Apr
8 wk after
Black-eyed Susan
Rudbeckia hirta
14 – 28 Feb
6-8 wk
11 Apr
5 wk after
22 Apr
6 wk after
Woodland sage
Salvia nemorosa
7 – 21 Jan
8-10 wk
18 Mar
1 wk after
6 Apr
4 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
26 Feb – 26 Mar
6-10 wk
7 May
8 wk after
California goldenpoppy
Eschscholzia californica
8 Mar
1 wk before
Painted tongue
Salpiglossis sinuata
18 Feb – 4 Mar
8-10 wk
29 Apr
8 wk after
Water forget-me-not
Myosotis scorpioides
31 Dec – 14 Jan
6-8 wk
25 Feb
3 wk before
25 Mar
2 wk after
Current date Soon Date passed