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Rel. frost
Last spring frost (0°C) 11 Mar Frost 3 of 4 years · 20 years of data
Frost-free season 258 days 11 Mar – 24 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
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Cauliflower
Brassica oleracea (Botrytis-gruppen)
21 Jan – 4 Feb
21 Jun
5-7 wk
11 Mar
26 Jul
0 wk
5 Mar
16 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
28 Jan – 11 Feb
3 Jul
4-6 wk
11 Mar
31 Jul
0 wk
5 Mar
21 Jul
1 wk before
Chili pepper
Capsicum annuum
5 Feb – 5 Mar
18 Apr
8-12 wk
30 Apr
13 Jun
7 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
21 Jan – 4 Feb
16 Jun
5-7 wk
11 Mar
21 Jul
0 wk
26 Feb
11 Jul
2 wk before
Garden cucumber
Cucumis sativus
2 – 9 Apr
29 Jun
3-4 wk
30 Apr
20 Jul
7 wk after
Florence Fennel
Foeniculum vulgare
26 Mar – 2 Apr
13 Jun
4-5 wk
30 Apr
11 Jul
7 wk after
21 Apr
1 Jul
6 wk after
Butter bean
Phaseolus lunatus
Fleece
2 – 9 May
10 Jun
3-4 wk
30 May
1 Jul
11 wk after
Onion
Allium cepa (Cepa-gruppen)
17 Dec – 14 Jan
6 Apr
8-12 wk
11 Mar
1 Jun
0 wk
24 Mar
22 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
5 Mar
21 Jun
1 wk before
5 Mar
11 Jun
1 wk before
Maize
Zea mays
21 – 28 Mar
19 Jun
3-4 wk
18 Apr
10 Jul
5 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
13 – 20 Feb
10 Jul
3-4 wk
13 Mar
31 Jul
0 wk
24 Mar
21 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
11 Mar
11 Jul
0 wk
26 Feb
1 Jul
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
21 Jan – 4 Feb
16 Jun
5-7 wk
11 Mar
21 Jul
0 wk
26 Feb
11 Jul
2 wk before
Potato
Solanum tuberosum
2 – 16 Feb
13 Jun
4-6 wk
16 Mar
11 Jul
1 wk after
16 Mar
1 Jul
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
21 Jan – 4 Feb
26 Jun
5-7 wk
11 Mar
31 Jul
0 wk
5 Mar
21 Jul
1 wk before
Pumpkin
Cucurbita pepo
2 – 9 Apr
15 Jul
3-4 wk
30 Apr
5 Aug
7 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
13 – 20 Feb
1 Jul
3-4 wk
13 Mar
22 Jul
0 wk
24 Mar
12 Jul
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
28 Jan – 11 Feb
28 Jun
4-6 wk
11 Mar
26 Jul
0 wk
Lettuce
Lactuca sativa
11 – 18 Feb
15 Jul
3-4 wk
11 Mar
5 Aug
0 wk
5 Mar
26 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
28 Jan – 11 Feb
28 Jun
4-6 wk
11 Mar
26 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
29 Jan – 12 Feb
7 Jun
2-4 wk
26 Feb
21 Jun
2 wk before
26 Feb
11 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
5 Mar
21 Jun
1 wk before
5 Mar
11 Jun
1 wk before
Spinach
Spinacia oleracea
11 – 18 Feb
30 Jul
3-4 wk
11 Mar
20 Aug
0 wk
19 Feb
10 Aug
3 wk before
Sweet potato
Ipomoea batatas
12 – 26 Apr
4-6 wk
24 May
11 wk after
Garden tomato
Solanum lycopersicum
21 Feb – 7 Mar
29 May
6-8 wk
18 Apr
10 Jul
5 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
21 Mar – 4 Apr
17 Jul
2-4 wk
18 Apr
31 Jul
5 wk after
21 Apr
21 Jul
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
28 Jan – 11 Feb
28 Jun
4-6 wk
11 Mar
26 Jul
0 wk
Garden pea
Pisum sativum
11 – 18 Feb
30 Jun
3-4 wk
11 Mar
21 Jul
0 wk
5 Mar
11 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
19 Mar – 2 Apr
23 Jun
4-6 wk
30 Apr
21 Jul
7 wk after
Lemon balm
Melissa officinalis
31 Dec – 14 Jan
26 May
8-10 wk
11 Mar
21 Jul
0 wk
6 Apr
11 Jul
4 wk after
Dill
Anethum graveolens
5 Mar
31 Jul
1 wk before
Wild chives
Allium schoenoprasum
Season too short
14 – 28 Jan
9 Jun
6-8 wk
11 Mar
21 Jul
0 wk
5 Feb
11 Jul
5 wk before
Spearmint
Mentha spicata
17 Dec – 14 Jan
26 May
8-12 wk
11 Mar
21 Jul
0 wk
6 Apr
11 Jul
4 wk after
Coriander
Coriandrum sativum
11 Mar
20 Aug
0 wk
24 Mar
10 Aug
2 wk after
Garden sage
Salvia officinalis
2 – 16 Jan
11 May
8-10 wk
13 Mar
6 Jul
0 wk
Common thyme
Thymus vulgaris
31 Dec – 14 Jan
16 May
8-10 wk
11 Mar
11 Jul
0 wk
Oregano
Origanum vulgare
14 – 28 Jan
30 May
6-8 wk
11 Mar
11 Jul
0 wk
6 Apr
1 Jul
4 wk after
Parsley
Petroselinum crispum
14 – 28 Jan
30 May
6-8 wk
11 Mar
11 Jul
0 wk
5 Mar
1 Jul
1 wk before
Rosemary
Salvia rosmarinus
5 Dec – 2 Jan
12 Apr
10-14 wk
13 Mar
21 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
2 – 9 Apr
30 Jun
3-4 wk
30 Apr
21 Jul
7 wk after
Cornflower
Centaurea cyanus
11 Mar
21 Jul
0 wk
5 Mar
11 Jul
1 wk before
Statice
Limonium sinuatum
7 – 21 Feb
16 May
8-10 wk
18 Apr
11 Jul
5 wk after
Sweet William
Dianthus barbatus
14 – 28 Jan
6-8 wk
11 Mar
0 wk
16 Mar
1 wk after
Snow-on-the-mountain
Euphorbia marginata
21 Feb – 7 Mar
30 May
6-8 wk
18 Apr
11 Jul
5 wk after
24 May
1 Jul
11 wk after
Pinnate dahlia
Dahlia × pinnata
14 – 28 Feb
30 May
6-8 wk
11 Apr
11 Jul
4 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
9 Feb – 9 Mar
13 Jun
4-8 wk
6 Apr
11 Jul
4 wk after
6 Apr
1 Jul
4 wk after
Foxglove
Digitalis purpurea
31 Dec – 14 Jan
8-10 wk
11 Mar
0 wk
24 Mar
2 wk after
Busy lizzie
Impatiens walleriana
5 Feb – 5 Mar
11 Jul
8-12 wk
30 Apr
5 Sep
7 wk after
Creeping zinnia
Sanvitalia procumbens
21 Feb – 7 Mar
9 Jun
6-8 wk
18 Apr
21 Jul
5 wk after
Hyacinth bean
Dolichos lablab
8 – 22 Apr
13 May
4-6 wk
20 May
10 Jun
10 wk after
Chinese lantern
Physalis alkekengi
2 – 16 Jan
26 Apr
8-10 wk
13 Mar
21 Jun
0 wk
Love in a mist
Nigella damascena
11 Mar
6 Jul
0 wk
5 Mar
26 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
21 Feb – 7 Mar
20 May
6-8 wk
18 Apr
1 Jul
5 wk after
24 May
21 Jun
11 wk after
Purple-top vervain
Verbena bonariensis
19 Dec – 16 Jan
26 Apr
8-12 wk
13 Mar
21 Jun
0 wk
Cardoon
Cynara cardunculus
24 Jan – 21 Feb
27 Mar
8-12 wk
18 Apr
22 May
5 wk after
Regal-foxtail
Ptilotus nobilis
5 Feb – 5 Mar
16 May
8-12 wk
30 Apr
11 Jul
7 wk after
Globe amaranth
Gomphrena globosa
5 – 19 Mar
30 May
6-8 wk
30 Apr
11 Jul
7 wk after
Corn poppy
Papaver rhoeas
11 Mar
21 Jul
0 wk
5 Mar
11 Jul
1 wk before
Snapdragon
Antirrhinum majus
17 Dec – 14 Jan
16 May
8-12 wk
11 Mar
11 Jul
0 wk
16 Mar
1 Jul
1 wk after
Flossflower
Ageratum houstonianum
19 Feb – 5 Mar
26 May
8-10 wk
30 Apr
21 Jul
7 wk after
Sweet pea
Lathyrus odoratus
14 Jan – 4 Feb
6 Jun
5-8 wk
11 Mar
11 Jul
0 wk
Stock
Matthiola incana
14 – 28 Jan
9 Jun
6-8 wk
11 Mar
21 Jul
0 wk
24 Mar
11 Jul
2 wk after
Wormwood
Artemisia absinthium
14 – 28 Jan
10 May
6-8 wk
11 Mar
21 Jun
0 wk
24 Mar
11 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
19 Mar – 2 Apr
8 Jun
4-6 wk
30 Apr
6 Jul
7 wk after
Garden pansy
Viola × wittrockiana
31 Dec – 14 Jan
26 May
8-10 wk
11 Mar
21 Jul
0 wk
16 Mar
11 Jul
1 wk after
Petunia
Petunia
24 Jan – 21 Feb
16 May
8-12 wk
18 Apr
11 Jul
5 wk after
Sweet Scabious
Scabiosa atropurpurea
16 – 30 Jan
10 May
6-8 wk
13 Mar
21 Jun
0 wk
21 Apr
11 Jun
6 wk after
Common zinnia
Zinnia elegans
7 – 21 Mar
23 Jun
4-6 wk
18 Apr
21 Jul
5 wk after
Common morning glory
Ipomoea purpurea
26 Mar – 9 Apr
30 Jun
3-5 wk
30 Apr
21 Jul
7 wk after
Garden cosmos
Cosmos bipinnatus
7 – 21 Mar
13 Jun
4-6 wk
18 Apr
11 Jul
5 wk after
21 Apr
1 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
25 Feb – 25 Mar
15 Jun
8-12 wk
20 May
10 Aug
10 wk after
Bee balm
Monarda didyma
17 Dec – 14 Jan
26 Apr
8-12 wk
11 Mar
21 Jun
0 wk
6 Apr
11 Jun
4 wk after
Yarrow
Achillea millefolium
14 – 28 Jan
10 Apr
6-8 wk
11 Mar
22 May
0 wk
24 Mar
12 May
2 wk after
Safflower
Carthamus tinctorius
11 Mar
21 Jun
0 wk
5 Mar
11 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
14 – 28 Jan
30 May
6-8 wk
11 Mar
11 Jul
0 wk
24 Jan
1 Jul
7 wk before
Bishop's flower
Ammi majus
28 Jan – 11 Feb
13 Jun
4-6 wk
11 Mar
11 Jul
0 wk
24 Mar
1 Jul
2 wk after
Drumsticks
Pycnosorus globosus
5 – 19 Feb
12 Apr
10-12 wk
30 Apr
21 Jun
7 wk after
Sunflower
Helianthus annuus
21 – 28 Mar
20 Jun
3-4 wk
18 Apr
11 Jul
5 wk after
6 Apr
1 Jul
4 wk after
China aster
Callistephus chinensis
21 Feb – 7 Mar
9 Jun
6-8 wk
18 Apr
21 Jul
5 wk after
21 Apr
11 Jul
6 wk after
Annual phlox
Phlox drummondii
7 – 21 Feb
9 Jun
6-8 wk
4 Apr
21 Jul
3 wk after
21 Apr
11 Jul
6 wk after
Hollyhock
Alcea rosea
14 – 28 Jan
6-8 wk
11 Mar
0 wk
24 Mar
2 wk after
Alpine delphinium
Delphinium elatum
17 Dec – 14 Jan
26 Apr
8-12 wk
11 Mar
21 Jun
0 wk
6 Apr
11 Jun
4 wk after
African marigold
Tagetes erecta
21 Feb – 7 Mar
9 Jun
6-8 wk
18 Apr
21 Jul
5 wk after
Black-eyed Susan
Rudbeckia hirta
16 – 30 Jan
30 May
6-8 wk
13 Mar
11 Jul
0 wk
21 Apr
1 Jul
6 wk after
Wood sage
Salvia nemorosa
31 Dec – 14 Jan
16 Apr
8-10 wk
11 Mar
11 Jun
0 wk
6 Apr
1 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
19 Feb – 19 Mar
9 Jun
6-10 wk
30 Apr
21 Jul
7 wk after
California goldenpoppy
Eschscholzia californica
11 Mar
21 Jul
0 wk
5 Mar
11 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
7 – 21 Feb
16 May
8-10 wk
18 Apr
11 Jul
5 wk after
Water forget-me-not
Myosotis scorpioides
Season too short
14 – 28 Jan
10 May
6-8 wk
11 Mar
21 Jun
0 wk
26 Feb
11 Jun
2 wk before