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Rel. frost
Last spring frost (0°C) 3 May Frost 1 of 4 years · 20 years of data
Frost-free season 183 days 3 May – 2 Nov
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)
16 – 30 Apr
21 Jun
5-7 wk
4 Jun
26 Jul
5 wk after
27 Apr
16 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
11 – 25 Apr
3 Jul
4-6 wk
23 May
31 Jul
3 wk after
27 Apr
21 Jul
1 wk before
Chili pepper
Capsicum annuum
Fleece
5 Apr – 3 May
4 May
8-12 wk
28 Jun
29 Jun
8 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
13 – 27 Feb
16 Jun
5-7 wk
3 Apr
21 Jul
4 wk before
20 Apr
11 Jul
2 wk before
Garden cucumber
Cucumis sativus
11 – 18 Jun
28 Jun
3-4 wk
9 Jul
19 Jul
10 wk after
Florence Fennel
Foeniculum vulgare
4 – 11 Jun
13 Jun
4-5 wk
9 Jul
11 Jul
10 wk after
13 Jun
1 Jul
6 wk after
Butter bean
Phaseolus lunatus
20 – 27 Jun
3-4 wk
18 Jul
11 wk after
Onion
Allium cepa (Cepa-gruppen)
8 Feb – 8 Mar
6 Apr
8-12 wk
3 May
1 Jun
Vid frost
16 May
22 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
27 Apr
21 Jun
1 wk before
27 Apr
11 Jun
1 wk before
Maize
Zea mays
31 May – 7 Jun
18 Jun
3-4 wk
28 Jun
9 Jul
8 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
7 – 14 May
10 Jul
3-4 wk
4 Jun
31 Jul
5 wk after
16 May
21 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
20 Apr
1 Jul
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
13 – 27 Feb
16 Jun
5-7 wk
3 Apr
21 Jul
4 wk before
20 Apr
11 Jul
2 wk before
Potato
Solanum tuberosum
27 Mar – 10 Apr
13 Jun
4-6 wk
8 May
11 Jul
1 wk after
8 May
1 Jul
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
13 – 27 Feb
26 Jun
5-7 wk
3 Apr
31 Jul
4 wk before
27 Apr
21 Jul
1 wk before
Pumpkin
Cucurbita pepo
11 – 18 Jun
13 Jul
3-4 wk
9 Jul
3 Aug
10 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
7 – 14 May
5 Jul
3-4 wk
4 Jun
26 Jul
5 wk after
16 May
16 Jul
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
11 – 25 Apr
28 Jun
4-6 wk
23 May
26 Jul
3 wk after
Lettuce
Lactuca sativa
27 Mar – 3 Apr
15 Jul
3-4 wk
24 Apr
5 Aug
1 wk before
27 Apr
26 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
13 – 27 Mar
28 Jun
4-6 wk
24 Apr
26 Jul
1 wk before
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
23 Mar – 6 Apr
7 Jun
2-4 wk
20 Apr
21 Jun
2 wk before
20 Apr
11 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
27 Apr
21 Jun
1 wk before
27 Apr
11 Jun
1 wk before
Spinach
Spinacia oleracea
16 – 23 Mar
30 Jul
3-4 wk
13 Apr
20 Aug
3 wk before
13 Apr
10 Aug
3 wk before
Sweet potato
Ipomoea batatas
4 – 18 Jun
4-6 wk
16 Jul
11 wk after
Garden tomato
Solanum lycopersicum
3 – 17 May
28 May
6-8 wk
28 Jun
9 Jul
8 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
31 May – 14 Jun
15 Jul
2-4 wk
28 Jun
29 Jul
8 wk after
13 Jun
19 Jul
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
11 – 25 Apr
28 Jun
4-6 wk
23 May
26 Jul
3 wk after
Garden pea
Pisum sativum
16 – 23 Mar
30 Jun
3-4 wk
13 Apr
21 Jul
3 wk before
27 Apr
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
28 May – 11 Jun
21 Jun
4-6 wk
9 Jul
19 Jul
10 wk after
Lemon balm
Melissa officinalis
22 Feb – 8 Mar
26 May
8-10 wk
3 May
21 Jul
Vid frost
29 May
11 Jul
4 wk after
Dill
Anethum graveolens
27 Apr
31 Jul
1 wk before
Wild chives
Allium schoenoprasum
6 – 20 Feb
9 Jun
6-8 wk
3 Apr
21 Jul
4 wk before
27 Apr
11 Jul
1 wk before
Spearmint
Mentha spicata
19 Jan – 16 Feb
26 May
8-12 wk
13 Apr
21 Jul
3 wk before
29 May
11 Jul
4 wk after
Coriander
Coriandrum sativum
16 May
10 Aug
2 wk after
Garden sage
Salvia officinalis
26 Mar – 9 Apr
11 May
8-10 wk
4 Jun
6 Jul
5 wk after
Common thyme
Thymus vulgaris
14 – 28 Mar
16 May
8-10 wk
23 May
11 Jul
3 wk after
Oregano
Origanum vulgare
17 – 31 Mar
30 May
6-8 wk
12 May
11 Jul
1 wk after
29 May
1 Jul
4 wk after
Parsley
Petroselinum crispum
16 Feb – 2 Mar
30 May
6-8 wk
13 Apr
11 Jul
3 wk before
27 Apr
1 Jul
1 wk before
Rosemary
Salvia rosmarinus
26 Feb – 26 Mar
12 Apr
10-14 wk
4 Jun
21 Jun
5 wk after

Annual flowers

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Morning glory
Ipomoea tricolor
11 – 18 Jun
28 Jun
3-4 wk
9 Jul
19 Jul
10 wk after
Cornflower
Centaurea cyanus
13 Apr
21 Jul
3 wk before
27 Apr
11 Jul
1 wk before
Statice
Limonium sinuatum
19 Apr – 3 May
16 May
8-10 wk
28 Jun
11 Jul
8 wk after
Sweet William
Dianthus barbatus
16 Feb – 2 Mar
6-8 wk
13 Apr
3 wk before
8 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
3 – 17 May
30 May
6-8 wk
28 Jun
11 Jul
8 wk after
16 Jul
11 wk after
Pinnate dahlia
Dahlia × pinnata
26 Apr – 10 May
30 May
6-8 wk
21 Jun
11 Jul
7 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
3 Apr – 1 May
13 Jun
4-8 wk
29 May
11 Jul
4 wk after
29 May
1 Jul
4 wk after
Foxglove
Digitalis purpurea
2 – 16 Feb
8-10 wk
13 Apr
3 wk before
16 May
2 wk after
Busy lizzie
Impatiens walleriana
16 Apr – 14 May
11 Jul
8-12 wk
9 Jul
5 Sep
10 wk after
Creeping zinnia
Sanvitalia procumbens
3 – 17 May
9 Jun
6-8 wk
28 Jun
21 Jul
8 wk after
Hyacinth bean
Dolichos lablab
Fleece
28 May – 11 Jun
4-6 wk
9 Jul
10 wk after
Chinese lantern
Physalis alkekengi
26 Mar – 9 Apr
26 Apr
8-10 wk
4 Jun
21 Jun
5 wk after
Love in a mist
Nigella damascena
27 Apr
26 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
3 – 17 May
20 May
6-8 wk
28 Jun
1 Jul
8 wk after
16 Jul
11 wk after
Purple-top vervain
Verbena bonariensis
12 Mar – 9 Apr
26 Apr
8-12 wk
4 Jun
21 Jun
5 wk after
Cardoon
Cynara cardunculus
5 Apr – 3 May
8-12 wk
28 Jun
8 wk after
Regal-foxtail
Ptilotus nobilis
16 Apr – 14 May
14 May
8-12 wk
9 Jul
9 Jul
10 wk after
Globe amaranth
Gomphrena globosa
14 – 28 May
28 May
6-8 wk
9 Jul
9 Jul
10 wk after
Corn poppy
Papaver rhoeas
27 Apr
11 Jul
1 wk before
Snapdragon
Antirrhinum majus
30 Jan – 27 Feb
16 May
8-12 wk
24 Apr
11 Jul
1 wk before
8 May
1 Jul
1 wk after
Flossflower
Ageratum houstonianum
30 Apr – 14 May
26 May
8-10 wk
9 Jul
21 Jul
10 wk after
Sweet pea
Lathyrus odoratus
16 Feb – 9 Mar
6 Jun
5-8 wk
13 Apr
11 Jul
3 wk before
Stock
Matthiola incana
27 Feb – 13 Mar
9 Jun
6-8 wk
24 Apr
21 Jul
1 wk before
16 May
11 Jul
2 wk after
Wormwood
Artemisia absinthium
16 Feb – 2 Mar
10 May
6-8 wk
13 Apr
21 Jun
3 wk before
16 May
11 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
28 May – 11 Jun
6 Jun
4-6 wk
9 Jul
10 wk after
Garden pansy
Viola × wittrockiana
23 Jan – 6 Feb
26 May
8-10 wk
3 Apr
21 Jul
4 wk before
8 May
11 Jul
1 wk after
Petunia
Petunia
5 Apr – 3 May
16 May
8-12 wk
28 Jun
11 Jul
8 wk after
Sweet Scabious
Scabiosa atropurpurea
9 – 23 Apr
10 May
6-8 wk
4 Jun
21 Jun
5 wk after
13 Jun
6 wk after
Common zinnia
Zinnia elegans
17 – 31 May
23 Jun
4-6 wk
28 Jun
21 Jul
8 wk after
Common morning glory
Ipomoea purpurea
4 – 18 Jun
28 Jun
3-5 wk
9 Jul
19 Jul
10 wk after
Garden cosmos
Cosmos bipinnatus
17 – 31 May
13 Jun
4-6 wk
28 Jun
11 Jul
8 wk after
13 Jun
1 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
23 Apr – 21 May
13 Jun
8-12 wk
16 Jul
8 Aug
11 wk after
Bee balm
Monarda didyma
8 Feb – 8 Mar
26 Apr
8-12 wk
3 May
21 Jun
Vid frost
29 May
11 Jun
4 wk after
Yarrow
Achillea millefolium
16 Feb – 2 Mar
10 Apr
6-8 wk
13 Apr
22 May
3 wk before
16 May
2 wk after
Safflower
Carthamus tinctorius
13 Apr
21 Jun
3 wk before
27 Apr
11 Jun
1 wk before
Iceland poppy
Papaver nudicaule
6 – 20 Feb
30 May
6-8 wk
3 Apr
11 Jul
4 wk before
20 Apr
1 Jul
2 wk before
Bishop's flower
Ammi majus
6 – 20 Apr
13 Jun
4-6 wk
18 May
11 Jul
2 wk after
16 May
1 Jul
2 wk after
Drumsticks
Pycnosorus globosus
16 – 30 Apr
10-12 wk
9 Jul
10 wk after
Sunflower
Helianthus annuus
31 May – 7 Jun
20 Jun
3-4 wk
28 Jun
11 Jul
8 wk after
29 May
1 Jul
4 wk after
China aster
Callistephus chinensis
3 – 17 May
9 Jun
6-8 wk
28 Jun
21 Jul
8 wk after
13 Jun
11 Jul
6 wk after
Annual phlox
Phlox drummondii
18 Apr – 2 May
9 Jun
6-8 wk
13 Jun
21 Jul
6 wk after
13 Jun
11 Jul
6 wk after
Hollyhock
Alcea rosea
16 Feb – 2 Mar
6-8 wk
13 Apr
3 wk before
16 May
2 wk after
Alpine delphinium
Delphinium elatum
28 Feb – 28 Mar
26 Apr
8-12 wk
23 May
21 Jun
3 wk after
29 May
11 Jun
4 wk after
African marigold
Tagetes erecta
3 – 17 May
9 Jun
6-8 wk
28 Jun
21 Jul
8 wk after
Black-eyed Susan
Rudbeckia hirta
9 – 23 Apr
30 May
6-8 wk
4 Jun
11 Jul
5 wk after
13 Jun
1 Jul
6 wk after
Wood sage
Salvia nemorosa
3 – 17 Mar
16 Apr
8-10 wk
12 May
11 Jun
1 wk after
29 May
1 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
30 Apr – 28 May
7 Jun
6-10 wk
9 Jul
19 Jul
10 wk after
California goldenpoppy
Eschscholzia californica
27 Apr
11 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
19 Apr – 3 May
16 May
8-10 wk
28 Jun
11 Jul
8 wk after
Water forget-me-not
Myosotis scorpioides
16 Feb – 2 Mar
10 May
6-8 wk
13 Apr
21 Jun
3 wk before
16 May
11 Jun
2 wk after