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Rel. frost
Last spring frost (0°C) 11 Mar Frost 9 of 10 years · 20 years of data
Frost-free season 235 days 11 Mar – 1 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)
20 Feb – 6 Mar
5-7 wk
10 Apr
5 wk after
7 Mar
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
14 – 28 Feb
4-6 wk
28 Mar
3 wk after
7 Mar
1 wk before
Chili pepper
Capsicum annuum
Fleece
11 Feb – 11 Mar
8-12 wk
6 May
8 wk after
Kale
Brassica oleracea (Curly Kale-gruppen)
28 Dec – 11 Jan
5-7 wk
15 Feb
4 wk before
3 Mar
2 wk before
Cucumber
Cucumis sativus
8 – 15 Apr
3-4 wk
6 May
10 wk after
Florence Fennel
Foeniculum vulgare
Fleece
1 – 8 Apr
4-5 wk
6 May
8 wk after
6 Apr
4 wk after
Butter bean
Phaseolus lunatus
Season too short
24 – 31 Mar
3-4 wk
21 Apr
6 wk after
Onion
Allium cepa (Cepa-gruppen)
17 Dec – 14 Jan
8-12 wk
11 Mar
Vid frost
24 Mar
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
Season too short
26 Feb
2 wk before
Sweetcorn
Zea mays
Season too short
16 – 23 Mar
3-4 wk
13 Apr
5 wk after
Chard
Beta vulgaris (Flavescens-gruppen)
13 – 20 Mar
3-4 wk
10 Apr
5 wk after
24 Mar
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
3 Mar
2 wk before
Cavolo nero
Brassica oleracea (Palm Kale-gruppen)
28 Dec – 11 Jan
5-7 wk
15 Feb
4 wk before
3 Mar
2 wk before
Potato
Solanum tuberosum
Season too short
8 – 22 Jan
4-6 wk
19 Feb
3 wk before
19 Feb
3 wk before
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
28 Dec – 11 Jan
5-7 wk
15 Feb
4 wk before
7 Mar
1 wk before
Pumpkin
Cucurbita pepo
8 – 15 Apr
3-4 wk
6 May
10 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
13 – 20 Mar
3-4 wk
10 Apr
5 wk after
24 Mar
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
14 – 28 Feb
4-6 wk
28 Mar
3 wk after
Lettuce
Lactuca sativa
4 – 11 Feb
3-4 wk
4 Mar
1 wk before
7 Mar
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
21 Jan – 4 Feb
4-6 wk
4 Mar
1 wk before
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
Season too short
27 Dec – 10 Jan
2-4 wk
24 Jan
7 wk before
24 Jan
7 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Season too short
5 Feb
5 wk before
Spinach
Spinacia oleracea
27 Jan – 3 Feb
3-4 wk
24 Feb
3 wk before
26 Feb
3 wk before
Sweet potato
Ipomoea batatas
29 Mar – 12 Apr
4-6 wk
10 May
11 wk after
Tomato
Solanum lycopersicum
3 – 17 Mar
6-8 wk
28 Apr
8 wk after
Tomatillo
Physalis ixocarpa
French bean
Phaseolus vulgaris
31 Mar – 14 Apr
2-4 wk
28 Apr
8 wk after
21 Apr
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
14 – 28 Feb
4-6 wk
28 Mar
3 wk after
Pea
Pisum sativum
27 Jan – 3 Feb
3-4 wk
24 Feb
3 wk before
7 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
2 – 16 Mar
4-6 wk
13 Apr
5 wk after
Lemon balm
Melissa officinalis
31 Dec – 14 Jan
8-10 wk
11 Mar
Vid frost
5 Apr
4 wk after
Dill
Anethum graveolens
7 Mar
1 wk before
Chives
Allium schoenoprasum
21 Dec – 4 Jan
6-8 wk
15 Feb
4 wk before
7 Mar
1 wk before
Spearmint
Mentha spicata
2 – 30 Dec
8-12 wk
24 Feb
3 wk before
5 Apr
4 wk after
Coriander
Coriandrum sativum
24 Mar
2 wk after
Sage
Salvia officinalis
30 Jan – 13 Feb
8-10 wk
10 Apr
5 wk after
Thyme
Thymus vulgaris
17 – 31 Jan
8-10 wk
28 Mar
3 wk after
Oregano
Origanum vulgare
20 Jan – 3 Feb
6-8 wk
17 Mar
1 wk after
5 Apr
4 wk after
Parsley
Petroselinum crispum
30 Dec – 13 Jan
6-8 wk
24 Feb
3 wk before
7 Mar
1 wk before
Rosemary
Salvia rosmarinus
2 – 30 Jan
10-14 wk
10 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
8 – 15 Apr
3-4 wk
6 May
8 wk after
Cornflower
Centaurea cyanus
24 Feb
3 wk before
7 Mar
1 wk before
Statice
Limonium sinuatum
17 Feb – 3 Mar
8-10 wk
28 Apr
8 wk after
Sweet William
Dianthus barbatus
30 Dec – 13 Jan
6-8 wk
24 Feb
3 wk before
19 Mar
1 wk after
Snow-on-the-mountain
Euphorbia marginata
3 – 17 Mar
6-8 wk
28 Apr
8 wk after
21 May
11 wk after
Dahlia
Dahlia × pinnata
26 Feb – 12 Mar
6-8 wk
23 Apr
7 wk after
Dahlia (tubers)
Dahlia × pinnata
Season too short
13 Jan – 10 Feb
4-8 wk
10 Mar
10 Mar
Foxglove
Digitalis purpurea
16 – 30 Dec
8-10 wk
24 Feb
3 wk before
24 Mar
2 wk after
Busy lizzie
Impatiens walleriana
11 Feb – 11 Mar
8-12 wk
6 May
10 wk after
Creeping zinnia
Sanvitalia procumbens
3 – 17 Mar
6-8 wk
28 Apr
8 wk after
Hyacinth bean
Dolichos lablab
Greenhouse
25 Mar – 8 Apr
4-6 wk
6 May
8 wk after
Chinese lantern
Physalis alkekengi
30 Jan – 13 Feb
8-10 wk
10 Apr
5 wk after
Love in a mist
Nigella damascena
7 Mar
1 wk before
Strawflower
Xerochrysum bracteatum
3 – 17 Mar
6-8 wk
28 Apr
8 wk after
21 May
11 wk after
Tall verbena
Verbena bonariensis
16 Jan – 13 Feb
8-12 wk
10 Apr
5 wk after
Cardoon
Cynara cardunculus
Fleece
27 Jan – 24 Feb
8-12 wk
21 Apr
6 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
11 Feb – 11 Mar
8-12 wk
6 May
8 wk after
Globe amaranth
Gomphrena globosa
Fleece
11 – 25 Mar
6-8 wk
6 May
8 wk after
Corn poppy
Papaver rhoeas
7 Mar
1 wk before
Snapdragon
Antirrhinum majus
10 Dec – 7 Jan
8-12 wk
4 Mar
1 wk before
19 Mar
1 wk after
Flossflower
Ageratum houstonianum
Fleece
25 Feb – 11 Mar
8-10 wk
6 May
8 wk after
Sweet pea
Lathyrus odoratus
30 Dec – 20 Jan
5-8 wk
24 Feb
3 wk before
Stock
Matthiola incana
7 – 21 Jan
6-8 wk
4 Mar
1 wk before
24 Mar
2 wk after
Wormwood
Artemisia absinthium
30 Dec – 13 Jan
6-8 wk
24 Feb
3 wk before
24 Mar
2 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
25 Mar – 8 Apr
4-6 wk
6 May
8 wk after
Pansy
Viola × wittrockiana
7 – 21 Dec
8-10 wk
15 Feb
4 wk before
19 Mar
1 wk after
Petunia
Petunia
3 Feb – 3 Mar
8-12 wk
28 Apr
8 wk after
Scabious
Scabiosa atropurpurea
13 – 27 Feb
6-8 wk
10 Apr
5 wk after
21 Apr
6 wk after
Zinnia
Zinnia elegans
17 – 31 Mar
4-6 wk
28 Apr
8 wk after
Common morning glory
Ipomoea purpurea
Fleece
1 – 15 Apr
3-5 wk
6 May
8 wk after
Cosmos
Cosmos bipinnatus
17 – 31 Mar
4-6 wk
28 Apr
8 wk after
21 Apr
6 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
22 Feb – 22 Mar
8-12 wk
17 May
10 wk after
Bee balm
Monarda didyma
17 Dec – 14 Jan
8-12 wk
11 Mar
Vid frost
5 Apr
4 wk after
Yarrow
Achillea millefolium
30 Dec – 13 Jan
6-8 wk
24 Feb
3 wk before
24 Mar
2 wk after
Safflower
Carthamus tinctorius
24 Feb
3 wk before
7 Mar
1 wk before
Iceland poppy
Papaver nudicaule
21 Dec – 4 Jan
6-8 wk
15 Feb
4 wk before
3 Mar
2 wk before
Bishop's flower
Ammi majus
8 – 22 Feb
4-6 wk
22 Mar
2 wk after
24 Mar
2 wk after
Drumsticks
Pycnosorus globosus
Fleece
11 – 25 Feb
10-12 wk
6 May
8 wk after
Sunflower
Helianthus annuus
31 Mar – 7 Apr
3-4 wk
28 Apr
8 wk after
5 Apr
4 wk after
China aster
Callistephus chinensis
3 – 17 Mar
6-8 wk
28 Apr
8 wk after
21 Apr
6 wk after
Annual phlox
Phlox drummondii
19 Feb – 5 Mar
6-8 wk
16 Apr
6 wk after
21 Apr
6 wk after
Hollyhock
Alcea rosea
30 Dec – 13 Jan
6-8 wk
24 Feb
3 wk before
24 Mar
2 wk after
Delphinium
Delphinium elatum
3 – 31 Jan
8-12 wk
28 Mar
3 wk after
5 Apr
4 wk after
African marigold
Tagetes erecta
3 – 17 Mar
6-8 wk
28 Apr
8 wk after
Black-eyed Susan
Rudbeckia hirta
13 – 27 Feb
6-8 wk
10 Apr
5 wk after
21 Apr
6 wk after
Woodland sage
Salvia nemorosa
6 – 20 Jan
8-10 wk
17 Mar
1 wk after
5 Apr
4 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
25 Feb – 25 Mar
6-10 wk
6 May
8 wk after
California goldenpoppy
Eschscholzia californica
7 Mar
1 wk before
Painted tongue
Salpiglossis sinuata
17 Feb – 3 Mar
8-10 wk
28 Apr
8 wk after
Water forget-me-not
Myosotis scorpioides
30 Dec – 13 Jan
6-8 wk
24 Feb
3 wk before
24 Mar
2 wk after
Current date Soon Date passed