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Rel. frost
Last spring frost (0°C) 21 Apr Frost 3 of 4 years · 20 years of data
Frost-free season 189 days 21 Apr – 27 Oct
Probability that frost is over

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