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Rel. frost
Last spring frost (0°C) 22 Apr Frost 1 of 4 years · 20 years of data
Frost-free season 206 days 22 Apr – 14 Nov
Probability that frost is over

75% = 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)
3 – 17 Apr
5-7 wk
22 May
4 wk after
18 Apr
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
28 Mar – 11 Apr
4-6 wk
9 May
2 wk after
18 Apr
1 wk before
Chili pepper
Capsicum annuum
Fleece
16 Mar – 13 Apr
8-12 wk
8 Jun
7 wk after
Kale
Brassica oleracea (Curly Kale-gruppen)
8 – 22 Feb
5-7 wk
29 Mar
4 wk before
14 Apr
2 wk before
Cucumber
Cucumis sativus
Fleece
11 – 18 May
3-4 wk
8 Jun
7 wk after
Florence Fennel
Foeniculum vulgare
Fleece
4 – 11 May
4-5 wk
8 Jun
7 wk after
13 May
3 wk after
Butter bean
Phaseolus lunatus
Season too short
30 Apr – 7 May
3-4 wk
28 May
5 wk after
Onion
Allium cepa (Cepa-gruppen)
28 Jan – 25 Feb
8-12 wk
22 Apr
Vid frost
5 May
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
5 May
1 wk after
Sweetcorn
Zea mays
Greenhouse
22 – 29 Apr
3-4 wk
20 May
4 wk after
Chard
Beta vulgaris (Flavescens-gruppen)
24 Apr – 1 May
3-4 wk
22 May
4 wk after
5 May
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
14 Apr
2 wk before
Cavolo nero
Brassica oleracea (Palm Kale-gruppen)
8 – 22 Feb
5-7 wk
29 Mar
4 wk before
14 Apr
2 wk before
Potato
Solanum tuberosum
28 Apr – 12 May
4-6 wk
9 Jun
7 wk after
30 Apr
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
8 – 22 Feb
5-7 wk
29 Mar
4 wk before
18 Apr
1 wk before
Pumpkin
Cucurbita pepo
Fleece
11 – 18 May
3-4 wk
8 Jun
7 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
24 Apr – 1 May
3-4 wk
22 May
4 wk after
5 May
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
28 Mar – 11 Apr
4-6 wk
9 May
2 wk after
Lettuce
Lactuca sativa
18 – 25 Mar
3-4 wk
15 Apr
1 wk before
18 Apr
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
4 – 18 Mar
4-6 wk
15 Apr
1 wk before
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
10 – 24 Mar
2-4 wk
7 Apr
2 wk before
14 Apr
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
18 Apr
1 wk before
Spinach
Spinacia oleracea
10 – 17 Mar
3-4 wk
7 Apr
2 wk before
9 Apr
3 wk before
Sweet potato
Ipomoea batatas
10 – 24 May
4-6 wk
21 Jun
8 wk after
Tomato
Solanum lycopersicum
14 – 28 Apr
6-8 wk
9 Jun
7 wk after
Tomatillo
Physalis ixocarpa
French bean
Phaseolus vulgaris
12 – 26 May
2-4 wk
9 Jun
7 wk after
2 Jun
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
28 Mar – 11 Apr
4-6 wk
9 May
2 wk after
Pea
Pisum sativum
10 – 17 Mar
3-4 wk
7 Apr
2 wk before
18 Apr
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
Fleece
26 Apr – 10 May
4-6 wk
7 Jun
7 wk after
Lemon balm
Melissa officinalis
11 – 25 Feb
8-10 wk
22 Apr
Vid frost
17 May
3 wk after
Dill
Anethum graveolens
18 Apr
1 wk before
Chives
Allium schoenoprasum
1 – 15 Feb
6-8 wk
29 Mar
4 wk before
18 Apr
1 wk before
Spearmint
Mentha spicata
13 Jan – 10 Feb
8-12 wk
7 Apr
2 wk before
17 May
3 wk after
Coriander
Coriandrum sativum
5 May
1 wk after
Sage
Salvia officinalis
13 – 27 Mar
8-10 wk
22 May
4 wk after
Thyme
Thymus vulgaris
28 Feb – 14 Mar
8-10 wk
9 May
2 wk after
Oregano
Origanum vulgare
3 – 17 Mar
6-8 wk
28 Apr
1 wk after
17 May
3 wk after
Parsley
Petroselinum crispum
10 – 24 Feb
6-8 wk
7 Apr
2 wk before
18 Apr
1 wk before
Rosemary
Salvia rosmarinus
13 Feb – 13 Mar
10-14 wk
22 May
4 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
11 – 18 May
3-4 wk
8 Jun
7 wk after
Cornflower
Centaurea cyanus
7 Apr
2 wk before
18 Apr
1 wk before
Statice
Limonium sinuatum
31 Mar – 14 Apr
8-10 wk
9 Jun
7 wk after
Sweet William
Dianthus barbatus
10 – 24 Feb
6-8 wk
7 Apr
2 wk before
30 Apr
1 wk after
Snow-on-the-mountain
Euphorbia marginata
14 – 28 Apr
6-8 wk
9 Jun
7 wk after
2 Jul
10 wk after
Dahlia
Dahlia × pinnata
9 – 23 Apr
6-8 wk
4 Jun
6 wk after
Dahlia (tubers)
Dahlia × pinnata
9 Apr – 7 May
4-8 wk
4 Jun
6 wk after
17 May
3 wk after
Foxglove
Digitalis purpurea
27 Jan – 10 Feb
8-10 wk
7 Apr
2 wk before
5 May
1 wk after
Busy lizzie
Impatiens walleriana
25 Mar – 22 Apr
8-12 wk
17 Jun
8 wk after
Creeping zinnia
Sanvitalia procumbens
14 – 28 Apr
6-8 wk
9 Jun
7 wk after
Hyacinth bean
Dolichos lablab
Season too short
27 Apr – 11 May
4-6 wk
8 Jun
7 wk after
Chinese lantern
Physalis alkekengi
13 – 27 Mar
8-10 wk
22 May
4 wk after
Love in a mist
Nigella damascena
18 Apr
1 wk before
Strawflower
Xerochrysum bracteatum
14 – 28 Apr
6-8 wk
9 Jun
7 wk after
2 Jul
10 wk after
Tall verbena
Verbena bonariensis
27 Feb – 27 Mar
8-12 wk
22 May
4 wk after
Cardoon
Cynara cardunculus
Greenhouse
19 Feb – 19 Mar
8-12 wk
14 May
3 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
16 Mar – 13 Apr
8-12 wk
8 Jun
7 wk after
Globe amaranth
Gomphrena globosa
Fleece
13 – 27 Apr
6-8 wk
8 Jun
7 wk after
Corn poppy
Papaver rhoeas
18 Apr
1 wk before
Snapdragon
Antirrhinum majus
21 Jan – 18 Feb
8-12 wk
15 Apr
1 wk before
30 Apr
1 wk after
Flossflower
Ageratum houstonianum
Fleece
30 Mar – 13 Apr
8-10 wk
8 Jun
7 wk after
Sweet pea
Lathyrus odoratus
10 Feb – 3 Mar
5-8 wk
7 Apr
2 wk before
Stock
Matthiola incana
18 Feb – 4 Mar
6-8 wk
15 Apr
1 wk before
5 May
1 wk after
Wormwood
Artemisia absinthium
10 – 24 Feb
6-8 wk
7 Apr
2 wk before
5 May
1 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
27 Apr – 11 May
4-6 wk
8 Jun
7 wk after
Pansy
Viola × wittrockiana
18 Jan – 1 Feb
8-10 wk
29 Mar
4 wk before
30 Apr
1 wk after
Petunia
Petunia
17 Mar – 14 Apr
8-12 wk
9 Jun
7 wk after
Scabious
Scabiosa atropurpurea
27 Mar – 10 Apr
6-8 wk
22 May
4 wk after
2 Jun
5 wk after
Zinnia
Zinnia elegans
28 Apr – 12 May
4-6 wk
9 Jun
7 wk after
Common morning glory
Ipomoea purpurea
Fleece
4 – 18 May
3-5 wk
8 Jun
7 wk after
Cosmos
Cosmos bipinnatus
28 Apr – 12 May
4-6 wk
9 Jun
7 wk after
2 Jun
5 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
16 Mar – 13 Apr
8-12 wk
8 Jun
7 wk after
Bee balm
Monarda didyma
28 Jan – 25 Feb
8-12 wk
22 Apr
Vid frost
17 May
3 wk after
Yarrow
Achillea millefolium
10 – 24 Feb
6-8 wk
7 Apr
2 wk before
5 May
1 wk after
Safflower
Carthamus tinctorius
7 Apr
2 wk before
18 Apr
1 wk before
Iceland poppy
Papaver nudicaule
1 – 15 Feb
6-8 wk
29 Mar
4 wk before
14 Apr
2 wk before
Bishop's flower
Ammi majus
22 Mar – 5 Apr
4-6 wk
3 May
1 wk after
5 May
1 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
4 – 18 Mar
10-12 wk
27 May
5 wk after
Sunflower
Helianthus annuus
12 – 19 May
3-4 wk
9 Jun
7 wk after
17 May
3 wk after
China aster
Callistephus chinensis
Fleece
1 – 15 Apr
6-8 wk
27 May
5 wk after
13 May
3 wk after
Annual phlox
Phlox drummondii
2 – 16 Apr
6-8 wk
28 May
5 wk after
2 Jun
5 wk after
Hollyhock
Alcea rosea
10 – 24 Feb
6-8 wk
7 Apr
2 wk before
5 May
1 wk after
Delphinium
Delphinium elatum
14 Feb – 14 Mar
8-12 wk
9 May
2 wk after
17 May
3 wk after
African marigold
Tagetes erecta
14 – 28 Apr
6-8 wk
9 Jun
7 wk after
Black-eyed Susan
Rudbeckia hirta
27 Mar – 10 Apr
6-8 wk
22 May
4 wk after
2 Jun
5 wk after
Woodland sage
Salvia nemorosa
17 Feb – 3 Mar
8-10 wk
28 Apr
1 wk after
17 May
3 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
30 Mar – 27 Apr
6-10 wk
8 Jun
7 wk after
California goldenpoppy
Eschscholzia californica
18 Apr
1 wk before
Painted tongue
Salpiglossis sinuata
31 Mar – 14 Apr
8-10 wk
9 Jun
7 wk after
Water forget-me-not
Myosotis scorpioides
10 – 24 Feb
6-8 wk
7 Apr
2 wk before
5 May
1 wk after
Current date Soon Date passed