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