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Rel. frost
Last spring frost (0°C) 13 Mar Frost 9 of 10 years · 20 years of data
Frost-free season 248 days 13 Mar – 16 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)
22 Feb – 8 Mar
5-7 wk
12 Apr
5 wk after
9 Mar
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
16 Feb – 2 Mar
4-6 wk
30 Mar
3 wk after
9 Mar
1 wk before
Chili pepper
Capsicum annuum
Fleece
13 Feb – 13 Mar
8-12 wk
8 May
8 wk after
Kale
Brassica oleracea (Curly Kale-gruppen)
30 Dec – 13 Jan
5-7 wk
17 Feb
4 wk before
5 Mar
2 wk before
Cucumber
Cucumis sativus
Fleece
10 – 17 Apr
3-4 wk
8 May
8 wk after
Florence Fennel
Foeniculum vulgare
Fleece
3 – 10 Apr
4-5 wk
8 May
8 wk after
8 Apr
4 wk after
Butter bean
Phaseolus lunatus
Greenhouse
26 Mar – 2 Apr
3-4 wk
23 Apr
6 wk after
Onion
Allium cepa (Cepa-gruppen)
19 Dec – 16 Jan
8-12 wk
13 Mar
Vid frost
26 Mar
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
26 Mar
2 wk after
Sweetcorn
Zea mays
Fleece
31 Mar – 7 Apr
3-4 wk
28 Apr
7 wk after
Chard
Beta vulgaris (Flavescens-gruppen)
15 – 22 Mar
3-4 wk
12 Apr
5 wk after
26 Mar
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
5 Mar
2 wk before
Cavolo nero
Brassica oleracea (Palm Kale-gruppen)
30 Dec – 13 Jan
5-7 wk
17 Feb
4 wk before
5 Mar
2 wk before
Potato
Solanum tuberosum
19 Mar – 2 Apr
4-6 wk
30 Apr
8 wk after
21 Mar
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
30 Dec – 13 Jan
5-7 wk
17 Feb
4 wk before
9 Mar
1 wk before
Pumpkin
Cucurbita pepo
Fleece
10 – 17 Apr
3-4 wk
8 May
8 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
15 – 22 Mar
3-4 wk
12 Apr
5 wk after
26 Mar
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
16 Feb – 2 Mar
4-6 wk
30 Mar
3 wk after
Lettuce
Lactuca sativa
6 – 13 Feb
3-4 wk
6 Mar
1 wk before
9 Mar
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
23 Jan – 6 Feb
4-6 wk
6 Mar
1 wk before
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
29 Jan – 12 Feb
2-4 wk
26 Feb
3 wk before
5 Mar
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
9 Mar
1 wk before
Spinach
Spinacia oleracea
29 Jan – 5 Feb
3-4 wk
26 Feb
3 wk before
28 Feb
3 wk before
Sweet potato
Ipomoea batatas
31 Mar – 14 Apr
4-6 wk
12 May
11 wk after
Tomato
Solanum lycopersicum
5 – 19 Mar
6-8 wk
30 Apr
8 wk after
Tomatillo
Physalis ixocarpa
French bean
Phaseolus vulgaris
2 – 16 Apr
2-4 wk
30 Apr
8 wk after
23 Apr
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
16 Feb – 2 Mar
4-6 wk
30 Mar
3 wk after
Pea
Pisum sativum
29 Jan – 5 Feb
3-4 wk
26 Feb
3 wk before
9 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
Fleece
17 – 31 Mar
4-6 wk
28 Apr
7 wk after
Lemon balm
Melissa officinalis
2 – 16 Jan
8-10 wk
13 Mar
Vid frost
7 Apr
4 wk after
Dill
Anethum graveolens
9 Mar
1 wk before
Chives
Allium schoenoprasum
23 Dec – 6 Jan
6-8 wk
17 Feb
4 wk before
9 Mar
1 wk before
Spearmint
Mentha spicata
4 Dec – 1 Jan
8-12 wk
26 Feb
3 wk before
7 Apr
4 wk after
Coriander
Coriandrum sativum
26 Mar
2 wk after
Sage
Salvia officinalis
1 – 15 Feb
8-10 wk
12 Apr
5 wk after
Thyme
Thymus vulgaris
19 Jan – 2 Feb
8-10 wk
30 Mar
3 wk after
Oregano
Origanum vulgare
22 Jan – 5 Feb
6-8 wk
19 Mar
1 wk after
7 Apr
4 wk after
Parsley
Petroselinum crispum
1 – 15 Jan
6-8 wk
26 Feb
3 wk before
9 Mar
1 wk before
Rosemary
Salvia rosmarinus
4 Jan – 1 Feb
10-14 wk
12 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
10 – 17 Apr
3-4 wk
8 May
8 wk after
Cornflower
Centaurea cyanus
26 Feb
3 wk before
9 Mar
1 wk before
Statice
Limonium sinuatum
19 Feb – 5 Mar
8-10 wk
30 Apr
8 wk after
Sweet William
Dianthus barbatus
1 – 15 Jan
6-8 wk
26 Feb
3 wk before
21 Mar
1 wk after
Snow-on-the-mountain
Euphorbia marginata
5 – 19 Mar
6-8 wk
30 Apr
8 wk after
23 May
11 wk after
Dahlia
Dahlia × pinnata
28 Feb – 14 Mar
6-8 wk
25 Apr
7 wk after
Dahlia (tubers)
Dahlia × pinnata
28 Feb – 28 Mar
4-8 wk
25 Apr
7 wk after
7 Apr
4 wk after
Foxglove
Digitalis purpurea
18 Dec – 1 Jan
8-10 wk
26 Feb
3 wk before
26 Mar
2 wk after
Busy lizzie
Impatiens walleriana
Fleece
13 Feb – 13 Mar
8-12 wk
8 May
8 wk after
Creeping zinnia
Sanvitalia procumbens
5 – 19 Mar
6-8 wk
30 Apr
8 wk after
Hyacinth bean
Dolichos lablab
Greenhouse
27 Mar – 10 Apr
4-6 wk
8 May
8 wk after
Chinese lantern
Physalis alkekengi
1 – 15 Feb
8-10 wk
12 Apr
5 wk after
Love in a mist
Nigella damascena
9 Mar
1 wk before
Strawflower
Xerochrysum bracteatum
5 – 19 Mar
6-8 wk
30 Apr
8 wk after
23 May
11 wk after
Tall verbena
Verbena bonariensis
18 Jan – 15 Feb
8-12 wk
12 Apr
5 wk after
Cardoon
Cynara cardunculus
Fleece
29 Jan – 26 Feb
8-12 wk
23 Apr
6 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
13 Feb – 13 Mar
8-12 wk
8 May
8 wk after
Globe amaranth
Gomphrena globosa
Fleece
13 – 27 Mar
6-8 wk
8 May
8 wk after
Corn poppy
Papaver rhoeas
9 Mar
1 wk before
Snapdragon
Antirrhinum majus
12 Dec – 9 Jan
8-12 wk
6 Mar
1 wk before
21 Mar
1 wk after
Flossflower
Ageratum houstonianum
Fleece
27 Feb – 13 Mar
8-10 wk
8 May
8 wk after
Sweet pea
Lathyrus odoratus
1 – 22 Jan
5-8 wk
26 Feb
3 wk before
Stock
Matthiola incana
9 – 23 Jan
6-8 wk
6 Mar
1 wk before
26 Mar
2 wk after
Wormwood
Artemisia absinthium
1 – 15 Jan
6-8 wk
26 Feb
3 wk before
26 Mar
2 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
27 Mar – 10 Apr
4-6 wk
8 May
8 wk after
Pansy
Viola × wittrockiana
9 – 23 Dec
8-10 wk
17 Feb
4 wk before
21 Mar
1 wk after
Petunia
Petunia
5 Feb – 5 Mar
8-12 wk
30 Apr
8 wk after
Scabious
Scabiosa atropurpurea
15 Feb – 1 Mar
6-8 wk
12 Apr
5 wk after
23 Apr
6 wk after
Zinnia
Zinnia elegans
19 Mar – 2 Apr
4-6 wk
30 Apr
8 wk after
Common morning glory
Ipomoea purpurea
Fleece
3 – 17 Apr
3-5 wk
8 May
8 wk after
Cosmos
Cosmos bipinnatus
19 Mar – 2 Apr
4-6 wk
30 Apr
8 wk after
23 Apr
6 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
13 Feb – 13 Mar
8-12 wk
8 May
8 wk after
Bee balm
Monarda didyma
19 Dec – 16 Jan
8-12 wk
13 Mar
Vid frost
7 Apr
4 wk after
Yarrow
Achillea millefolium
1 – 15 Jan
6-8 wk
26 Feb
3 wk before
26 Mar
2 wk after
Safflower
Carthamus tinctorius
26 Feb
3 wk before
9 Mar
1 wk before
Iceland poppy
Papaver nudicaule
23 Dec – 6 Jan
6-8 wk
17 Feb
4 wk before
5 Mar
2 wk before
Bishop's flower
Ammi majus
10 – 24 Feb
4-6 wk
24 Mar
2 wk after
26 Mar
2 wk after
Drumsticks
Pycnosorus globosus
Fleece
13 – 27 Feb
10-12 wk
8 May
8 wk after
Sunflower
Helianthus annuus
2 – 9 Apr
3-4 wk
30 Apr
8 wk after
7 Apr
4 wk after
China aster
Callistephus chinensis
5 – 19 Mar
6-8 wk
30 Apr
8 wk after
23 Apr
6 wk after
Annual phlox
Phlox drummondii
21 Feb – 7 Mar
6-8 wk
18 Apr
6 wk after
23 Apr
6 wk after
Hollyhock
Alcea rosea
1 – 15 Jan
6-8 wk
26 Feb
3 wk before
26 Mar
2 wk after
Delphinium
Delphinium elatum
5 Jan – 2 Feb
8-12 wk
30 Mar
3 wk after
7 Apr
4 wk after
African marigold
Tagetes erecta
5 – 19 Mar
6-8 wk
30 Apr
8 wk after
Black-eyed Susan
Rudbeckia hirta
15 Feb – 1 Mar
6-8 wk
12 Apr
5 wk after
23 Apr
6 wk after
Woodland sage
Salvia nemorosa
8 – 22 Jan
8-10 wk
19 Mar
1 wk after
7 Apr
4 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
27 Feb – 27 Mar
6-10 wk
8 May
8 wk after
California goldenpoppy
Eschscholzia californica
9 Mar
1 wk before
Painted tongue
Salpiglossis sinuata
19 Feb – 5 Mar
8-10 wk
30 Apr
8 wk after
Water forget-me-not
Myosotis scorpioides
1 – 15 Jan
6-8 wk
26 Feb
3 wk before
26 Mar
2 wk after
Current date Soon Date passed