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Rel. frost
Last spring frost (0°C) 11 May Frost 1 of 10 years · 20 years of data
Frost-free season 189 days 11 May – 16 Nov
Probability that frost is over

90% = 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
12 – 26 Apr
5-7 wk
31 May
3 wk after
21 Apr
3 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
19 Apr – 3 May
4-6 wk
31 May
3 wk after
5 May
1 wk before
Chili pepper
Capsicum annuum
Greenhouse
29 Mar – 26 Apr
8-12 wk
21 Jun
6 wk after
Kale
Brassica oleracea (Curly Kale-gruppen)
21 Feb – 7 Mar
5-7 wk
11 Apr
4 wk before
28 Apr
2 wk before
Cucumber
Cucumis sativus
Fleece
8 – 15 Jun
3-4 wk
6 Jul
8 wk after
Florence Fennel
Foeniculum vulgare
Greenhouse
17 – 24 May
4-5 wk
21 Jun
6 wk after
24 May
2 wk after
Butter bean
Phaseolus lunatus
Greenhouse
24 – 31 May
3-4 wk
21 Jun
6 wk after
Onion
Allium cepa (Cepa-gruppen)
16 Feb – 16 Mar
8-12 wk
11 May
Vid frost
24 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
24 May
2 wk after
24 May
2 wk after
Sweetcorn
Zea mays
Fleece
29 May – 5 Jun
3-4 wk
26 Jun
7 wk after
Chard
Beta vulgaris (Flavescens-gruppen)
15 – 22 May
3-4 wk
12 Jun
5 wk after
24 May
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
28 Apr
2 wk before
Cavolo nero
Brassica oleracea (Palm Kale-gruppen)
21 Feb – 7 Mar
5-7 wk
11 Apr
4 wk before
28 Apr
2 wk before
Potato
Solanum tuberosum
4 – 18 Apr
4-6 wk
16 May
1 wk after
16 May
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
21 Feb – 7 Mar
5-7 wk
11 Apr
4 wk before
5 May
1 wk before
Pumpkin
Cucurbita pepo
Fleece
8 – 15 Jun
3-4 wk
6 Jul
8 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
15 – 22 May
3-4 wk
12 Jun
5 wk after
24 May
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
19 Apr – 3 May
4-6 wk
31 May
3 wk after
Lettuce
Lactuca sativa
4 – 11 Apr
3-4 wk
2 May
1 wk before
5 May
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
21 Mar – 4 Apr
4-6 wk
2 May
1 wk before
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
31 Mar – 14 Apr
2-4 wk
28 Apr
2 wk before
28 Apr
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
5 May
1 wk before
5 May
1 wk before
Spinach
Spinacia oleracea
24 – 31 Mar
3-4 wk
21 Apr
3 wk before
21 Apr
3 wk before
Sweet potato
Ipomoea batatas
12 – 26 Jun
4-6 wk
24 Jul
11 wk after
Tomato
Solanum lycopersicum
Fleece
26 Apr – 10 May
6-8 wk
21 Jun
6 wk after
Tomatillo
Physalis ixocarpa
French bean
Phaseolus vulgaris
8 – 22 Jun
2-4 wk
6 Jul
8 wk after
21 Jun
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
19 Apr – 3 May
4-6 wk
31 May
3 wk after
Pea
Pisum sativum
24 – 31 Mar
3-4 wk
21 Apr
3 wk before
5 May
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
15 – 29 May
4-6 wk
26 Jun
7 wk after
Lemon balm
Melissa officinalis
2 – 16 Mar
8-10 wk
11 May
Vid frost
6 Jun
4 wk after
Dill
Anethum graveolens
5 May
1 wk before
Chives
Allium schoenoprasum
14 – 28 Feb
6-8 wk
11 Apr
4 wk before
5 May
1 wk before
Spearmint
Mentha spicata
27 Jan – 24 Feb
8-12 wk
21 Apr
3 wk before
6 Jun
4 wk after
Coriander
Coriandrum sativum
24 May
2 wk after
Sage
Salvia officinalis
3 – 17 Apr
8-10 wk
12 Jun
5 wk after
Thyme
Thymus vulgaris
22 Mar – 5 Apr
8-10 wk
31 May
3 wk after
Oregano
Origanum vulgare
25 Mar – 8 Apr
6-8 wk
20 May
1 wk after
6 Jun
4 wk after
Parsley
Petroselinum crispum
24 Feb – 10 Mar
6-8 wk
21 Apr
3 wk before
5 May
1 wk before
Rosemary
Salvia rosmarinus
Fleece
22 Feb – 22 Mar
10-14 wk
31 May
3 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
Season too short
8 – 15 Jun
3-4 wk
6 Jul
8 wk after
Cornflower
Centaurea cyanus
21 Apr
3 wk before
5 May
1 wk before
Statice
Limonium sinuatum
Fleece
12 – 26 Apr
8-10 wk
21 Jun
6 wk after
Sweet William
Dianthus barbatus
24 Feb – 10 Mar
6-8 wk
21 Apr
3 wk before
16 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
26 Apr – 10 May
6-8 wk
21 Jun
6 wk after
26 Jun
7 wk after
Dahlia
Dahlia × pinnata
Fleece
17 Apr – 1 May
6-8 wk
12 Jun
5 wk after
Dahlia (tubers)
Dahlia × pinnata
11 Apr – 9 May
4-8 wk
6 Jun
4 wk after
6 Jun
4 wk after
Foxglove
Digitalis purpurea
10 – 24 Feb
8-10 wk
21 Apr
3 wk before
24 May
2 wk after
Busy lizzie
Impatiens walleriana
Fleece
13 Apr – 11 May
8-12 wk
6 Jul
8 wk after
Creeping zinnia
Sanvitalia procumbens
11 – 25 May
6-8 wk
6 Jul
8 wk after
Hyacinth bean
Dolichos lablab
Season too short
25 May – 8 Jun
4-6 wk
6 Jul
8 wk after
Chinese lantern
Physalis alkekengi
Fleece
22 Mar – 5 Apr
8-10 wk
31 May
3 wk after
Love in a mist
Nigella damascena
5 May
1 wk before
Strawflower
Xerochrysum bracteatum
Greenhouse
11 – 25 Apr
6-8 wk
6 Jun
4 wk after
13 Jun
5 wk after
Tall verbena
Verbena bonariensis
Fleece
8 Mar – 5 Apr
8-12 wk
31 May
3 wk after
Cardoon
Cynara cardunculus
Season too short
14 Mar – 11 Apr
8-12 wk
6 Jun
4 wk after
Regal-foxtail
Ptilotus nobilis
Greenhouse
29 Mar – 26 Apr
8-12 wk
21 Jun
6 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
26 Apr – 10 May
6-8 wk
21 Jun
6 wk after
Corn poppy
Papaver rhoeas
5 May
1 wk before
Snapdragon
Antirrhinum majus
7 Feb – 7 Mar
8-12 wk
2 May
1 wk before
16 May
1 wk after
Flossflower
Ageratum houstonianum
Greenhouse
12 – 26 Apr
8-10 wk
21 Jun
6 wk after
Sweet pea
Lathyrus odoratus
24 Feb – 17 Mar
5-8 wk
21 Apr
3 wk before
Stock
Matthiola incana
7 – 21 Mar
6-8 wk
2 May
1 wk before
24 May
2 wk after
Wormwood
Artemisia absinthium
24 Feb – 10 Mar
6-8 wk
21 Apr
3 wk before
24 May
2 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
10 – 24 May
4-6 wk
21 Jun
6 wk after
Pansy
Viola × wittrockiana
31 Jan – 14 Feb
8-10 wk
11 Apr
4 wk before
16 May
1 wk after
Petunia
Petunia
Fleece
29 Mar – 26 Apr
8-12 wk
21 Jun
6 wk after
Scabious
Scabiosa atropurpurea
Fleece
5 – 19 Apr
6-8 wk
31 May
3 wk after
6 Jun
4 wk after
Zinnia
Zinnia elegans
Fleece
10 – 24 May
4-6 wk
21 Jun
6 wk after
Common morning glory
Ipomoea purpurea
Fleece
1 – 15 Jun
3-5 wk
6 Jul
8 wk after
Cosmos
Cosmos bipinnatus
Fleece
10 – 24 May
4-6 wk
21 Jun
6 wk after
6 Jun
4 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
13 Apr – 11 May
8-12 wk
6 Jul
8 wk after
Bee balm
Monarda didyma
16 Feb – 16 Mar
8-12 wk
11 May
Vid frost
6 Jun
4 wk after
Yarrow
Achillea millefolium
24 Feb – 10 Mar
6-8 wk
21 Apr
3 wk before
24 May
2 wk after
Safflower
Carthamus tinctorius
21 Apr
3 wk before
5 May
1 wk before
Iceland poppy
Papaver nudicaule
14 – 28 Feb
6-8 wk
11 Apr
4 wk before
28 Apr
2 wk before
Bishop's flower
Ammi majus
14 – 28 Apr
4-6 wk
26 May
2 wk after
24 May
2 wk after
Drumsticks
Pycnosorus globosus
Season too short
29 Mar – 12 Apr
10-12 wk
21 Jun
6 wk after
Sunflower
Helianthus annuus
Fleece
24 – 31 May
3-4 wk
21 Jun
6 wk after
24 May
2 wk after
China aster
Callistephus chinensis
Greenhouse
11 – 25 Apr
6-8 wk
6 Jun
4 wk after
24 May
2 wk after
Annual phlox
Phlox drummondii
26 Apr – 10 May
6-8 wk
21 Jun
6 wk after
21 Jun
6 wk after
Hollyhock
Alcea rosea
24 Feb – 10 Mar
6-8 wk
21 Apr
3 wk before
24 May
2 wk after
Delphinium
Delphinium elatum
8 Mar – 5 Apr
8-12 wk
31 May
3 wk after
6 Jun
4 wk after
African marigold
Tagetes erecta
Fleece
26 Apr – 10 May
6-8 wk
21 Jun
6 wk after
Black-eyed Susan
Rudbeckia hirta
17 Apr – 1 May
6-8 wk
12 Jun
5 wk after
21 Jun
6 wk after
Woodland sage
Salvia nemorosa
11 – 25 Mar
8-10 wk
20 May
1 wk after
6 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
12 Apr – 10 May
6-10 wk
21 Jun
6 wk after
California goldenpoppy
Eschscholzia californica
5 May
1 wk before
Painted tongue
Salpiglossis sinuata
Fleece
12 – 26 Apr
8-10 wk
21 Jun
6 wk after
Water forget-me-not
Myosotis scorpioides
24 Feb – 10 Mar
6-8 wk
21 Apr
3 wk before
24 May
2 wk after
Current date Soon Date passed