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0.6°
Near frost tonight at 03:00. Bring in or cover sensitive plants
Method
Rel. frost
Last spring frost (0°C) 17 Apr Frost 9 of 10 years · 20 years of data
Frost-free season 168 days 17 Apr – 2 Oct
Probability that frost is over

10% = Half of years are frost-free by this date. More about frost & season →

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Vegetables

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