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Rel. frost
Last spring frost (0°C) 7 Apr Frost 1 of 4 years · 20 years of data
Frost-free season 239 days 7 Apr – 2 Dec
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
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Cauliflower
Brassica oleracea (Botrytis-gruppen)
17 Feb – 3 Mar
22 Jun
5-7 wk
7 Apr
27 Jul
0 wk
1 Apr
17 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
24 Feb – 10 Mar
4 Jul
4-6 wk
7 Apr
1 Aug
0 wk
1 Apr
22 Jul
1 wk before
Chili pepper
Capsicum annuum
23 Feb – 23 Mar
29 Apr
8-12 wk
18 May
24 Jun
6 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
Season too short
17 Feb – 3 Mar
17 Jun
5-7 wk
7 Apr
22 Jul
0 wk
20 Feb
12 Jul
7 wk before
Garden cucumber
Cucumis sativus
20 – 27 Apr
5 Jul
3-4 wk
18 May
26 Jul
6 wk after
Florence Fennel
Foeniculum vulgare
13 – 20 Apr
14 Jun
4-5 wk
18 May
12 Jul
6 wk after
18 May
2 Jul
6 wk after
Butter bean
Phaseolus lunatus
Fleece
16 – 23 May
11 Jun
3-4 wk
13 Jun
2 Jul
10 wk after
Onion
Allium cepa (Cepa-gruppen)
13 Jan – 10 Feb
7 Apr
8-12 wk
7 Apr
2 Jun
0 wk
20 Apr
23 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
1 Apr
22 Jun
1 wk before
1 Apr
12 Jun
1 wk before
Maize
Zea mays
6 – 13 Apr
25 Jun
3-4 wk
4 May
16 Jul
4 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
10 – 17 Mar
11 Jul
3-4 wk
7 Apr
1 Aug
0 wk
20 Apr
22 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
7 Apr
12 Jul
0 wk
25 Mar
2 Jul
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
Season too short
17 Feb – 3 Mar
17 Jun
5-7 wk
7 Apr
22 Jul
0 wk
20 Feb
12 Jul
7 wk before
Potato
Solanum tuberosum
1 – 15 Mar
14 Jun
4-6 wk
12 Apr
12 Jul
1 wk after
12 Apr
2 Jul
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
17 Feb – 3 Mar
27 Jun
5-7 wk
7 Apr
1 Aug
0 wk
1 Apr
22 Jul
1 wk before
Pumpkin
Cucurbita pepo
20 – 27 Apr
16 Jul
3-4 wk
18 May
6 Aug
6 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
10 – 17 Mar
11 Jul
3-4 wk
7 Apr
1 Aug
0 wk
20 Apr
22 Jul
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
Season too short
24 Feb – 10 Mar
29 Jun
4-6 wk
7 Apr
27 Jul
0 wk
Lettuce
Lactuca sativa
10 – 17 Mar
16 Jul
3-4 wk
7 Apr
6 Aug
0 wk
1 Apr
27 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
Season too short
24 Feb – 10 Mar
29 Jun
4-6 wk
7 Apr
27 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
25 Feb – 11 Mar
8 Jun
2-4 wk
25 Mar
22 Jun
2 wk before
25 Mar
12 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
1 Apr
22 Jun
1 wk before
1 Apr
12 Jun
1 wk before
Spinach
Spinacia oleracea
10 – 17 Mar
31 Jul
3-4 wk
7 Apr
21 Aug
0 wk
18 Mar
11 Aug
3 wk before
Sweet potato
Ipomoea batatas
9 – 23 May
4-6 wk
20 Jun
11 wk after
Garden tomato
Solanum lycopersicum
9 – 23 Mar
4 Jun
6-8 wk
4 May
16 Jul
4 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
6 – 20 Apr
18 Jul
2-4 wk
4 May
1 Aug
4 wk after
18 May
22 Jul
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
Season too short
24 Feb – 10 Mar
29 Jun
4-6 wk
7 Apr
27 Jul
0 wk
Garden pea
Pisum sativum
10 – 17 Mar
1 Jul
3-4 wk
7 Apr
22 Jul
0 wk
1 Apr
12 Jul
1 wk before

Herbs

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Basil
Ocimum basilicum
6 – 20 Apr
24 Jun
4-6 wk
18 May
22 Jul
6 wk after
Lemon balm
Melissa officinalis
27 Jan – 10 Feb
27 May
8-10 wk
7 Apr
22 Jul
0 wk
3 May
12 Jul
4 wk after
Dill
Anethum graveolens
1 Apr
1 Aug
1 wk before
Wild chives
Allium schoenoprasum
Season too short
10 – 24 Feb
10 Jun
6-8 wk
7 Apr
22 Jul
0 wk
4 Mar
12 Jul
5 wk before
Spearmint
Mentha spicata
13 Jan – 10 Feb
27 May
8-12 wk
7 Apr
22 Jul
0 wk
3 May
12 Jul
4 wk after
Coriander
Coriandrum sativum
7 Apr
21 Aug
0 wk
20 Apr
11 Aug
2 wk after
Garden sage
Salvia officinalis
Season too short
27 Jan – 10 Feb
12 May
8-10 wk
7 Apr
7 Jul
0 wk
Common thyme
Thymus vulgaris
Season too short
27 Jan – 10 Feb
17 May
8-10 wk
7 Apr
12 Jul
0 wk
Oregano
Origanum vulgare
10 – 24 Feb
31 May
6-8 wk
7 Apr
12 Jul
0 wk
3 May
2 Jul
4 wk after
Parsley
Petroselinum crispum
10 – 24 Feb
31 May
6-8 wk
7 Apr
12 Jul
0 wk
1 Apr
2 Jul
1 wk before
Rosemary
Salvia rosmarinus
30 Dec – 27 Jan
13 Apr
10-14 wk
7 Apr
22 Jun
0 wk

Annual flowers

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Morning glory
Ipomoea tricolor
20 – 27 Apr
1 Jul
3-4 wk
18 May
22 Jul
6 wk after
Cornflower
Centaurea cyanus
7 Apr
22 Jul
0 wk
1 Apr
12 Jul
1 wk before
Statice
Limonium sinuatum
23 Feb – 9 Mar
17 May
8-10 wk
4 May
12 Jul
4 wk after
Sweet William
Dianthus barbatus
10 – 24 Feb
6-8 wk
7 Apr
0 wk
12 Apr
1 wk after
Snow-on-the-mountain
Euphorbia marginata
9 – 23 Mar
31 May
6-8 wk
4 May
12 Jul
4 wk after
20 Jun
2 Jul
11 wk after
Pinnate dahlia
Dahlia × pinnata
4 – 18 Mar
31 May
6-8 wk
29 Apr
12 Jul
3 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
8 Mar – 5 Apr
14 Jun
4-8 wk
3 May
12 Jul
4 wk after
3 May
2 Jul
4 wk after
Foxglove
Digitalis purpurea
27 Jan – 10 Feb
8-10 wk
7 Apr
0 wk
20 Apr
2 wk after
Busy lizzie
Impatiens walleriana
23 Feb – 23 Mar
12 Jul
8-12 wk
18 May
6 Sep
6 wk after
Creeping zinnia
Sanvitalia procumbens
9 – 23 Mar
10 Jun
6-8 wk
4 May
22 Jul
4 wk after
Hyacinth bean
Dolichos lablab
24 Apr – 8 May
19 May
4-6 wk
5 Jun
16 Jun
8 wk after
Chinese lantern
Physalis alkekengi
27 Jan – 10 Feb
27 Apr
8-10 wk
7 Apr
22 Jun
0 wk
Love in a mist
Nigella damascena
7 Apr
7 Jul
0 wk
1 Apr
27 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
9 – 23 Mar
21 May
6-8 wk
4 May
2 Jul
4 wk after
20 Jun
22 Jun
11 wk after
Purple-top vervain
Verbena bonariensis
13 Jan – 10 Feb
27 Apr
8-12 wk
7 Apr
22 Jun
0 wk
Cardoon
Cynara cardunculus
9 Feb – 9 Mar
28 Mar
8-12 wk
4 May
23 May
4 wk after
Regal-foxtail
Ptilotus nobilis
23 Feb – 23 Mar
17 May
8-12 wk
18 May
12 Jul
6 wk after
Globe amaranth
Gomphrena globosa
23 Mar – 6 Apr
31 May
6-8 wk
18 May
12 Jul
6 wk after
Corn poppy
Papaver rhoeas
7 Apr
22 Jul
0 wk
1 Apr
12 Jul
1 wk before
Snapdragon
Antirrhinum majus
13 Jan – 10 Feb
17 May
8-12 wk
7 Apr
12 Jul
0 wk
12 Apr
2 Jul
1 wk after
Flossflower
Ageratum houstonianum
9 – 23 Mar
27 May
8-10 wk
18 May
22 Jul
6 wk after
Sweet pea
Lathyrus odoratus
10 Feb – 3 Mar
7 Jun
5-8 wk
7 Apr
12 Jul
0 wk
Stock
Matthiola incana
10 – 24 Feb
10 Jun
6-8 wk
7 Apr
22 Jul
0 wk
20 Apr
12 Jul
2 wk after
Wormwood
Artemisia absinthium
Season too short
10 – 24 Feb
11 May
6-8 wk
7 Apr
22 Jun
0 wk
25 Mar
12 Jun
2 wk before
Mexican sunflower
Tithonia rotundifolia
6 – 20 Apr
9 Jun
4-6 wk
18 May
7 Jul
6 wk after
Garden pansy
Viola × wittrockiana
27 Jan – 10 Feb
27 May
8-10 wk
7 Apr
22 Jul
0 wk
12 Apr
12 Jul
1 wk after
Petunia
Petunia
9 Feb – 9 Mar
17 May
8-12 wk
4 May
12 Jul
4 wk after
Sweet Scabious
Scabiosa atropurpurea
10 – 24 Feb
11 May
6-8 wk
7 Apr
22 Jun
0 wk
18 May
12 Jun
6 wk after
Common zinnia
Zinnia elegans
23 Mar – 6 Apr
24 Jun
4-6 wk
4 May
22 Jul
4 wk after
Common morning glory
Ipomoea purpurea
13 – 27 Apr
1 Jul
3-5 wk
18 May
22 Jul
6 wk after
Garden cosmos
Cosmos bipinnatus
23 Mar – 6 Apr
14 Jun
4-6 wk
4 May
12 Jul
4 wk after
18 May
2 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
13 Mar – 10 Apr
16 Jun
8-12 wk
5 Jun
11 Aug
8 wk after
Bee balm
Monarda didyma
13 Jan – 10 Feb
27 Apr
8-12 wk
7 Apr
22 Jun
0 wk
3 May
12 Jun
4 wk after
Yarrow
Achillea millefolium
Season too short
10 – 24 Feb
11 Apr
6-8 wk
7 Apr
23 May
0 wk
25 Mar
13 May
2 wk before
Safflower
Carthamus tinctorius
7 Apr
22 Jun
0 wk
1 Apr
12 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
10 – 24 Feb
31 May
6-8 wk
7 Apr
12 Jul
0 wk
20 Feb
2 Jul
7 wk before
Bishop's flower
Ammi majus
24 Feb – 10 Mar
14 Jun
4-6 wk
7 Apr
12 Jul
0 wk
20 Apr
2 Jul
2 wk after
Drumsticks
Pycnosorus globosus
23 Feb – 9 Mar
13 Apr
10-12 wk
18 May
22 Jun
6 wk after
Sunflower
Helianthus annuus
6 – 13 Apr
21 Jun
3-4 wk
4 May
12 Jul
4 wk after
3 May
2 Jul
4 wk after
China aster
Callistephus chinensis
9 – 23 Mar
10 Jun
6-8 wk
4 May
22 Jul
4 wk after
18 May
12 Jul
6 wk after
Annual phlox
Phlox drummondii
28 Feb – 14 Mar
10 Jun
6-8 wk
25 Apr
22 Jul
3 wk after
18 May
12 Jul
6 wk after
Hollyhock
Alcea rosea
10 – 24 Feb
6-8 wk
7 Apr
0 wk
20 Apr
2 wk after
Alpine delphinium
Delphinium elatum
13 Jan – 10 Feb
27 Apr
8-12 wk
7 Apr
22 Jun
0 wk
3 May
12 Jun
4 wk after
African marigold
Tagetes erecta
9 – 23 Mar
10 Jun
6-8 wk
4 May
22 Jul
4 wk after
Black-eyed Susan
Rudbeckia hirta
10 – 24 Feb
31 May
6-8 wk
7 Apr
12 Jul
0 wk
18 May
2 Jul
6 wk after
Wood sage
Salvia nemorosa
27 Jan – 10 Feb
17 Apr
8-10 wk
7 Apr
12 Jun
0 wk
3 May
2 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
9 Mar – 6 Apr
10 Jun
6-10 wk
18 May
22 Jul
6 wk after
California goldenpoppy
Eschscholzia californica
7 Apr
22 Jul
0 wk
1 Apr
12 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
23 Feb – 9 Mar
17 May
8-10 wk
4 May
12 Jul
4 wk after
Water forget-me-not
Myosotis scorpioides
Season too short
10 – 24 Feb
11 May
6-8 wk
7 Apr
22 Jun
0 wk
25 Mar
12 Jun
2 wk before