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Near frost tonight at 05:00. Bring in or cover sensitive plants
Method
Rel. frost
Last spring frost (0°C) 16 Apr Frost 9 of 10 years · 20 years of data
Frost-free season 174 days 16 Apr – 7 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)
26 Feb – 12 Mar
19 Jun
5-7 wk
16 Apr
24 Jul
0 wk
10 Apr
14 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
5 – 19 Mar
1 Jul
4-6 wk
16 Apr
29 Jul
0 wk
10 Apr
19 Jul
1 wk before
Chili pepper
Capsicum annuum
Season too short
9 Feb – 9 Mar
8-12 wk
4 May
3 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
26 Feb – 12 Mar
14 Jun
5-7 wk
16 Apr
19 Jul
0 wk
3 Apr
9 Jul
2 wk before
Garden cucumber
Cucumis sativus
Greenhouse
6 – 13 Apr
6 May
3-4 wk
4 May
27 May
3 wk after
Florence Fennel
Foeniculum vulgare
22 – 29 Apr
11 Jun
4-5 wk
27 May
9 Jul
6 wk after
27 May
29 Jun
6 wk after
Butter bean
Phaseolus lunatus
Season too short
9 – 16 May
3-4 wk
6 Jun
7 wk after
Onion
Allium cepa (Cepa-gruppen)
22 Jan – 19 Feb
4 Apr
8-12 wk
16 Apr
30 May
0 wk
29 Apr
20 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
10 Apr
19 Jun
1 wk before
10 Apr
9 Jun
1 wk before
Maize
Zea mays
Greenhouse
19 – 26 Mar
26 Apr
3-4 wk
16 Apr
17 May
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
19 – 26 Mar
8 Jul
3-4 wk
16 Apr
29 Jul
0 wk
29 Apr
19 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
16 Apr
9 Jul
0 wk
3 Apr
29 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
26 Feb – 12 Mar
14 Jun
5-7 wk
16 Apr
19 Jul
0 wk
3 Apr
9 Jul
2 wk before
Potato
Solanum tuberosum
10 – 24 Mar
9 Jun
4-6 wk
21 Apr
7 Jul
1 wk after
21 Apr
27 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
26 Feb – 12 Mar
24 Jun
5-7 wk
16 Apr
29 Jul
0 wk
10 Apr
19 Jul
1 wk before
Pumpkin
Cucurbita pepo
Fleece
15 – 22 Apr
11 May
3-4 wk
13 May
1 Jun
4 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
19 – 26 Mar
25 Jun
3-4 wk
16 Apr
16 Jul
0 wk
29 Apr
6 Jul
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
5 – 19 Mar
26 Jun
4-6 wk
16 Apr
24 Jul
0 wk
Lettuce
Lactuca sativa
19 – 26 Mar
13 Jul
3-4 wk
16 Apr
3 Aug
0 wk
10 Apr
24 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
5 – 19 Mar
26 Jun
4-6 wk
16 Apr
24 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
6 – 20 Mar
5 Jun
2-4 wk
3 Apr
19 Jun
2 wk before
3 Apr
9 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
10 Apr
19 Jun
1 wk before
10 Apr
9 Jun
1 wk before
Spinach
Spinacia oleracea
19 – 26 Mar
28 Jul
3-4 wk
16 Apr
18 Aug
0 wk
27 Mar
8 Aug
3 wk before
Sweet potato
Ipomoea batatas
18 May – 1 Jun
4-6 wk
29 Jun
11 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
19 Feb – 5 Mar
5 Apr
6-8 wk
16 Apr
17 May
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
6 – 20 Apr
13 May
2-4 wk
4 May
27 May
3 wk after
12 May
17 May
4 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
5 – 19 Mar
26 Jun
4-6 wk
16 Apr
24 Jul
0 wk
Garden pea
Pisum sativum
19 – 26 Mar
28 Jun
3-4 wk
16 Apr
19 Jul
0 wk
10 Apr
9 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
1 – 15 Apr
19 Apr
4-6 wk
13 May
17 May
4 wk after
Lemon balm
Melissa officinalis
5 – 19 Feb
24 May
8-10 wk
16 Apr
19 Jul
0 wk
12 May
9 Jul
4 wk after
Dill
Anethum graveolens
10 Apr
29 Jul
1 wk before
Wild chives
Allium schoenoprasum
Season too short
19 Feb – 5 Mar
30 May
6-8 wk
16 Apr
11 Jul
0 wk
13 Mar
1 Jul
5 wk before
Spearmint
Mentha spicata
22 Jan – 19 Feb
24 May
8-12 wk
16 Apr
19 Jul
0 wk
12 May
9 Jul
4 wk after
Coriander
Coriandrum sativum
16 Apr
18 Aug
0 wk
29 Apr
8 Aug
2 wk after
Garden sage
Salvia officinalis
5 – 19 Feb
9 May
8-10 wk
16 Apr
4 Jul
0 wk
Common thyme
Thymus vulgaris
5 – 19 Feb
14 May
8-10 wk
16 Apr
9 Jul
0 wk
Oregano
Origanum vulgare
19 Feb – 5 Mar
28 May
6-8 wk
16 Apr
9 Jul
0 wk
12 May
29 Jun
4 wk after
Parsley
Petroselinum crispum
19 Feb – 5 Mar
28 May
6-8 wk
16 Apr
9 Jul
0 wk
10 Apr
29 Jun
1 wk before
Rosemary
Salvia rosmarinus
8 Jan – 5 Feb
10 Apr
10-14 wk
16 Apr
19 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
15 – 22 Apr
26 Apr
3-4 wk
13 May
17 May
4 wk after
Cornflower
Centaurea cyanus
16 Apr
19 Jul
0 wk
10 Apr
9 Jul
1 wk before
Statice
Limonium sinuatum
4 – 18 Mar
31 Mar
8-10 wk
13 May
26 May
4 wk after
Sweet William
Dianthus barbatus
19 Feb – 5 Mar
6-8 wk
16 Apr
0 wk
21 Apr
1 wk after
Snow-on-the-mountain
Euphorbia marginata
18 Mar – 1 Apr
14 Apr
6-8 wk
13 May
26 May
4 wk after
29 Jun
11 wk after
Pinnate dahlia
Dahlia × pinnata
13 – 27 Mar
15 Apr
6-8 wk
8 May
27 May
3 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
17 Mar – 14 Apr
29 Apr
4-8 wk
12 May
27 May
4 wk after
12 May
17 May
4 wk after
Foxglove
Digitalis purpurea
5 – 19 Feb
8-10 wk
16 Apr
0 wk
29 Apr
2 wk after
Busy lizzie
Impatiens walleriana
4 Mar – 1 Apr
7 May
8-12 wk
27 May
2 Jul
6 wk after
Creeping zinnia
Sanvitalia procumbens
18 Mar – 1 Apr
24 Apr
6-8 wk
13 May
5 Jun
4 wk after
Hyacinth bean
Dolichos lablab
Season too short
1 – 15 Apr
4-6 wk
13 May
4 wk after
Chinese lantern
Physalis alkekengi
5 – 19 Feb
24 Apr
8-10 wk
16 Apr
19 Jun
0 wk
Love in a mist
Nigella damascena
16 Apr
4 Jul
0 wk
10 Apr
24 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
18 Mar – 1 Apr
4 Apr
6-8 wk
13 May
16 May
4 wk after
29 Jun
11 wk after
Purple-top vervain
Verbena bonariensis
22 Jan – 19 Feb
24 Apr
8-12 wk
16 Apr
19 Jun
0 wk
Cardoon
Cynara cardunculus
18 Feb – 18 Mar
25 Mar
8-12 wk
13 May
20 May
4 wk after
Regal-foxtail
Ptilotus nobilis
Greenhouse
9 Feb – 9 Mar
1 Apr
8-12 wk
4 May
27 May
3 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
9 – 23 Mar
15 Apr
6-8 wk
4 May
27 May
3 wk after
Corn poppy
Papaver rhoeas
16 Apr
19 Jul
0 wk
10 Apr
9 Jul
1 wk before
Snapdragon
Antirrhinum majus
22 Jan – 19 Feb
14 May
8-12 wk
16 Apr
9 Jul
0 wk
21 Apr
29 Jun
1 wk after
Flossflower
Ageratum houstonianum
18 Mar – 1 Apr
10 Apr
8-10 wk
27 May
5 Jun
6 wk after
Sweet pea
Lathyrus odoratus
19 Feb – 12 Mar
4 Jun
5-8 wk
16 Apr
9 Jul
0 wk
Stock
Matthiola incana
19 Feb – 5 Mar
7 Jun
6-8 wk
16 Apr
19 Jul
0 wk
29 Apr
9 Jul
2 wk after
Wormwood
Artemisia absinthium
19 Feb – 5 Mar
8 May
6-8 wk
16 Apr
19 Jun
0 wk
29 Apr
9 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
23 Mar – 6 Apr
24 Apr
4-6 wk
4 May
22 May
3 wk after
Garden pansy
Viola × wittrockiana
5 – 19 Feb
24 May
8-10 wk
16 Apr
19 Jul
0 wk
21 Apr
9 Jul
1 wk after
Petunia
Petunia
18 Feb – 18 Mar
31 Mar
8-12 wk
13 May
26 May
4 wk after
Sweet Scabious
Scabiosa atropurpurea
19 Feb – 5 Mar
8 May
6-8 wk
16 Apr
19 Jun
0 wk
27 May
9 Jun
6 wk after
Common zinnia
Zinnia elegans
1 – 15 Apr
19 Apr
4-6 wk
13 May
17 May
4 wk after
Common morning glory
Ipomoea purpurea
Fleece
8 – 22 Apr
26 Apr
3-5 wk
13 May
17 May
4 wk after
Garden cosmos
Cosmos bipinnatus
1 – 15 Apr
29 Apr
4-6 wk
13 May
27 May
4 wk after
27 May
6 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
4 Mar – 1 Apr
11 Apr
8-12 wk
27 May
6 Jun
6 wk after
Bee balm
Monarda didyma
22 Jan – 19 Feb
24 Apr
8-12 wk
16 Apr
19 Jun
0 wk
12 May
9 Jun
4 wk after
Yarrow
Achillea millefolium
19 Feb – 5 Mar
8 Apr
6-8 wk
16 Apr
20 May
0 wk
29 Apr
10 May
2 wk after
Safflower
Carthamus tinctorius
16 Apr
19 Jun
0 wk
10 Apr
9 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
19 Feb – 5 Mar
20 May
6-8 wk
16 Apr
1 Jul
0 wk
1 Mar
21 Jun
7 wk before
Bishop's flower
Ammi majus
5 – 19 Mar
11 Jun
4-6 wk
16 Apr
9 Jul
0 wk
29 Apr
29 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
9 – 23 Feb
16 Mar
10-12 wk
4 May
25 May
3 wk after
Sunflower
Helianthus annuus
15 – 22 Apr
18 Jun
3-4 wk
13 May
9 Jul
4 wk after
12 May
29 Jun
4 wk after
China aster
Callistephus chinensis
18 Mar – 1 Apr
7 Jun
6-8 wk
13 May
19 Jul
4 wk after
27 May
9 Jul
6 wk after
Annual phlox
Phlox drummondii
9 – 23 Mar
24 Apr
6-8 wk
4 May
5 Jun
3 wk after
27 May
6 wk after
Hollyhock
Alcea rosea
19 Feb – 5 Mar
6-8 wk
16 Apr
0 wk
29 Apr
2 wk after
Alpine delphinium
Delphinium elatum
22 Jan – 19 Feb
24 Apr
8-12 wk
16 Apr
19 Jun
0 wk
12 May
9 Jun
4 wk after
African marigold
Tagetes erecta
18 Mar – 1 Apr
24 Apr
6-8 wk
13 May
5 Jun
4 wk after
Black-eyed Susan
Rudbeckia hirta
19 Feb – 5 Mar
28 May
6-8 wk
16 Apr
9 Jul
0 wk
27 May
29 Jun
6 wk after
Wood sage
Salvia nemorosa
5 – 19 Feb
14 Apr
8-10 wk
16 Apr
9 Jun
0 wk
12 May
30 May
4 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
4 Mar – 1 Apr
5 Apr
6-10 wk
13 May
17 May
4 wk after
California goldenpoppy
Eschscholzia californica
16 Apr
19 Jul
0 wk
10 Apr
9 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
4 – 18 Mar
14 May
8-10 wk
13 May
9 Jul
4 wk after
Water forget-me-not
Myosotis scorpioides
Season too short
19 Feb – 5 Mar
30 Apr
6-8 wk
16 Apr
11 Jun
0 wk
3 Apr
1 Jun
2 wk before