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Rel. frost
Last spring frost (0°C) 19 Apr Frost 3 of 4 years · 20 years of data
Frost-free season 196 days 19 Apr – 1 Nov
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)
30 Mar – 13 Apr
5-7 wk
18 May
4 wk after
12 Apr
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
22 Mar – 5 Apr
4-6 wk
3 May
2 wk after
12 Apr
1 wk before
Chili pepper
Capsicum annuum
Fleece
13 Mar – 10 Apr
8-12 wk
5 Jun
7 wk after
Kale
Brassica oleracea (Curly Kale-gruppen)
4 – 18 Feb
5-7 wk
25 Mar
4 wk before
7 Apr
2 wk before
Cucumber
Cucumis sativus
Fleece
8 – 15 May
3-4 wk
5 Jun
7 wk after
Florence Fennel
Foeniculum vulgare
Fleece
1 – 8 May
4-5 wk
5 Jun
7 wk after
10 May
3 wk after
Butter bean
Phaseolus lunatus
Greenhouse
27 Apr – 4 May
3-4 wk
25 May
5 wk after
Onion
Allium cepa (Cepa-gruppen)
25 Jan – 22 Feb
8-12 wk
19 Apr
Vid frost
29 Apr
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
29 Apr
1 wk after
29 Apr
1 wk after
Sweetcorn
Zea mays
Fleece
7 – 14 May
3-4 wk
4 Jun
7 wk after
Chard
Beta vulgaris (Flavescens-gruppen)
20 – 27 Apr
3-4 wk
18 May
4 wk after
29 Apr
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
7 Apr
2 wk before
Cavolo nero
Brassica oleracea (Palm Kale-gruppen)
4 – 18 Feb
5-7 wk
25 Mar
4 wk before
7 Apr
2 wk before
Potato
Solanum tuberosum
13 – 27 Mar
4-6 wk
24 Apr
1 wk after
24 Apr
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
4 – 18 Feb
5-7 wk
25 Mar
4 wk before
12 Apr
1 wk before
Pumpkin
Cucurbita pepo
Fleece
8 – 15 May
3-4 wk
5 Jun
7 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
20 – 27 Apr
3-4 wk
18 May
4 wk after
29 Apr
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
22 Mar – 5 Apr
4-6 wk
3 May
2 wk after
Lettuce
Lactuca sativa
15 – 22 Mar
3-4 wk
12 Apr
1 wk before
12 Apr
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
1 – 15 Mar
4-6 wk
12 Apr
1 wk before
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
10 – 24 Mar
2-4 wk
7 Apr
2 wk before
7 Apr
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
12 Apr
1 wk before
12 Apr
1 wk before
Spinach
Spinacia oleracea
7 – 14 Mar
3-4 wk
4 Apr
2 wk before
1 Apr
3 wk before
Sweet potato
Ipomoea batatas
16 – 30 May
4-6 wk
27 Jun
10 wk after
Tomato
Solanum lycopersicum
10 – 24 Apr
6-8 wk
5 Jun
7 wk after
Tomatillo
Physalis ixocarpa
French bean
Phaseolus vulgaris
8 – 22 May
2-4 wk
5 Jun
7 wk after
25 May
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
22 Mar – 5 Apr
4-6 wk
3 May
2 wk after
Pea
Pisum sativum
7 – 14 Mar
3-4 wk
4 Apr
2 wk before
12 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
23 Apr – 7 May
4-6 wk
4 Jun
7 wk after
Lemon balm
Melissa officinalis
8 – 22 Feb
8-10 wk
19 Apr
Vid frost
10 May
3 wk after
Dill
Anethum graveolens
12 Apr
1 wk before
Chives
Allium schoenoprasum
28 Jan – 11 Feb
6-8 wk
25 Mar
4 wk before
12 Apr
1 wk before
Spearmint
Mentha spicata
10 Jan – 7 Feb
8-12 wk
4 Apr
2 wk before
10 May
3 wk after
Coriander
Coriandrum sativum
29 Apr
1 wk after
Sage
Salvia officinalis
9 – 23 Mar
8-10 wk
18 May
4 wk after
Thyme
Thymus vulgaris
22 Feb – 8 Mar
8-10 wk
3 May
2 wk after
Oregano
Origanum vulgare
28 Feb – 14 Mar
6-8 wk
25 Apr
1 wk after
10 May
3 wk after
Parsley
Petroselinum crispum
7 – 21 Feb
6-8 wk
4 Apr
2 wk before
12 Apr
1 wk before
Rosemary
Salvia rosmarinus
9 Feb – 9 Mar
10-14 wk
18 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
8 – 15 May
3-4 wk
5 Jun
7 wk after
Cornflower
Centaurea cyanus
4 Apr
2 wk before
12 Apr
1 wk before
Statice
Limonium sinuatum
27 Mar – 10 Apr
8-10 wk
5 Jun
7 wk after
Sweet William
Dianthus barbatus
7 – 21 Feb
6-8 wk
4 Apr
2 wk before
24 Apr
1 wk after
Snow-on-the-mountain
Euphorbia marginata
10 – 24 Apr
6-8 wk
5 Jun
7 wk after
27 Jun
10 wk after
Dahlia
Dahlia × pinnata
4 – 18 Apr
6-8 wk
30 May
6 wk after
Dahlia (tubers)
Dahlia × pinnata
15 Mar – 12 Apr
4-8 wk
10 May
3 wk after
10 May
3 wk after
Foxglove
Digitalis purpurea
24 Jan – 7 Feb
8-10 wk
4 Apr
2 wk before
29 Apr
1 wk after
Busy lizzie
Impatiens walleriana
21 Mar – 18 Apr
8-12 wk
13 Jun
8 wk after
Creeping zinnia
Sanvitalia procumbens
10 – 24 Apr
6-8 wk
5 Jun
7 wk after
Hyacinth bean
Dolichos lablab
Season too short
24 Apr – 8 May
4-6 wk
5 Jun
7 wk after
Chinese lantern
Physalis alkekengi
9 – 23 Mar
8-10 wk
18 May
4 wk after
Love in a mist
Nigella damascena
12 Apr
1 wk before
Strawflower
Xerochrysum bracteatum
10 – 24 Apr
6-8 wk
5 Jun
7 wk after
27 Jun
10 wk after
Tall verbena
Verbena bonariensis
23 Feb – 23 Mar
8-12 wk
18 May
4 wk after
Cardoon
Cynara cardunculus
Season too short
16 Feb – 16 Mar
8-12 wk
11 May
3 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
13 Mar – 10 Apr
8-12 wk
5 Jun
7 wk after
Globe amaranth
Gomphrena globosa
Fleece
10 – 24 Apr
6-8 wk
5 Jun
7 wk after
Corn poppy
Papaver rhoeas
12 Apr
1 wk before
Snapdragon
Antirrhinum majus
18 Jan – 15 Feb
8-12 wk
12 Apr
1 wk before
24 Apr
1 wk after
Flossflower
Ageratum houstonianum
Fleece
27 Mar – 10 Apr
8-10 wk
5 Jun
7 wk after
Sweet pea
Lathyrus odoratus
7 – 28 Feb
5-8 wk
4 Apr
2 wk before
Stock
Matthiola incana
15 Feb – 1 Mar
6-8 wk
12 Apr
1 wk before
29 Apr
1 wk after
Wormwood
Artemisia absinthium
7 – 21 Feb
6-8 wk
4 Apr
2 wk before
29 Apr
1 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
24 Apr – 8 May
4-6 wk
5 Jun
7 wk after
Pansy
Viola × wittrockiana
14 – 28 Jan
8-10 wk
25 Mar
4 wk before
24 Apr
1 wk after
Petunia
Petunia
13 Mar – 10 Apr
8-12 wk
5 Jun
7 wk after
Scabious
Scabiosa atropurpurea
23 Mar – 6 Apr
6-8 wk
18 May
4 wk after
25 May
5 wk after
Zinnia
Zinnia elegans
24 Apr – 8 May
4-6 wk
5 Jun
7 wk after
Common morning glory
Ipomoea purpurea
Fleece
1 – 15 May
3-5 wk
5 Jun
7 wk after
Cosmos
Cosmos bipinnatus
24 Apr – 8 May
4-6 wk
5 Jun
7 wk after
25 May
5 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
13 Mar – 10 Apr
8-12 wk
5 Jun
7 wk after
Bee balm
Monarda didyma
25 Jan – 22 Feb
8-12 wk
19 Apr
Vid frost
10 May
3 wk after
Yarrow
Achillea millefolium
7 – 21 Feb
6-8 wk
4 Apr
2 wk before
29 Apr
1 wk after
Safflower
Carthamus tinctorius
4 Apr
2 wk before
12 Apr
1 wk before
Iceland poppy
Papaver nudicaule
28 Jan – 11 Feb
6-8 wk
25 Mar
4 wk before
7 Apr
2 wk before
Bishop's flower
Ammi majus
18 Mar – 1 Apr
4-6 wk
29 Apr
1 wk after
29 Apr
1 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
1 – 15 Mar
10-12 wk
24 May
5 wk after
Sunflower
Helianthus annuus
8 – 15 May
3-4 wk
5 Jun
7 wk after
10 May
3 wk after
China aster
Callistephus chinensis
10 – 24 Apr
6-8 wk
5 Jun
7 wk after
25 May
5 wk after
Annual phlox
Phlox drummondii
29 Mar – 12 Apr
6-8 wk
24 May
5 wk after
25 May
5 wk after
Hollyhock
Alcea rosea
7 – 21 Feb
6-8 wk
4 Apr
2 wk before
29 Apr
1 wk after
Delphinium
Delphinium elatum
8 Feb – 8 Mar
8-12 wk
3 May
2 wk after
10 May
3 wk after
African marigold
Tagetes erecta
10 – 24 Apr
6-8 wk
5 Jun
7 wk after
Black-eyed Susan
Rudbeckia hirta
23 Mar – 6 Apr
6-8 wk
18 May
4 wk after
25 May
5 wk after
Woodland sage
Salvia nemorosa
14 – 28 Feb
8-10 wk
25 Apr
1 wk after
10 May
3 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
27 Mar – 24 Apr
6-10 wk
5 Jun
7 wk after
California goldenpoppy
Eschscholzia californica
12 Apr
1 wk before
Painted tongue
Salpiglossis sinuata
27 Mar – 10 Apr
8-10 wk
5 Jun
7 wk after
Water forget-me-not
Myosotis scorpioides
7 – 21 Feb
6-8 wk
4 Apr
2 wk before
29 Apr
1 wk after
Current date Soon Date passed