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Near frost tonight at 05:00. Bring in or cover sensitive plants
0.2°
Last 24h: Near frost recorded this morning at 06:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 18 May Frost 1 of 4 years · 20 years of data
Frost-free season 143 days 18 May – 8 Oct
Probability that frost is over

75% = 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)
28 Apr – 12 May
17 Jun
5-7 wk
16 Jun
22 Jul
4 wk after
11 May
12 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
20 Apr – 4 May
29 Jun
4-6 wk
1 Jun
27 Jul
2 wk after
11 May
17 Jul
1 wk before
Chili pepper
Capsicum annuum
Greenhouse
30 Mar – 27 Apr
21 Apr
8-12 wk
22 Jun
5 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
5 – 19 Mar
12 Jun
5-7 wk
23 Apr
17 Jul
4 wk before
6 May
7 Jul
2 wk before
Garden cucumber
Cucumis sativus
14 – 21 Jun
3-4 wk
12 Jul
8 wk after
Florence Fennel
Foeniculum vulgare
7 – 14 Jun
4-5 wk
12 Jul
8 wk after
23 Jun
24 Jun
5 wk after
Butter bean
Phaseolus lunatus
Greenhouse
16 – 23 Jun
3-4 wk
14 Jul
8 wk after
Onion
Allium cepa (Cepa-gruppen)
23 Feb – 23 Mar
2 Apr
8-12 wk
18 May
28 May
Vid frost
28 May
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
11 May
17 Jun
1 wk before
11 May
7 Jun
1 wk before
Maize
Zea mays
6 – 13 Jun
3-4 wk
4 Jul
7 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
19 – 26 May
6 Jul
3-4 wk
16 Jun
27 Jul
4 wk after
28 May
17 Jul
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
6 May
27 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
5 – 19 Mar
12 Jun
5-7 wk
23 Apr
17 Jul
4 wk before
6 May
7 Jul
2 wk before
Potato
Solanum tuberosum
11 – 25 Apr
9 Jun
4-6 wk
23 May
7 Jul
1 wk after
23 May
27 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
5 – 19 Mar
22 Jun
5-7 wk
23 Apr
27 Jul
4 wk before
11 May
17 Jul
1 wk before
Pumpkin
Cucurbita pepo
14 – 21 Jun
20 Jun
3-4 wk
12 Jul
8 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
19 – 26 May
23 Jun
3-4 wk
16 Jun
14 Jul
4 wk after
28 May
4 Jul
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
20 Apr – 4 May
24 Jun
4-6 wk
1 Jun
22 Jul
2 wk after
Lettuce
Lactuca sativa
13 – 20 Apr
11 Jul
3-4 wk
11 May
1 Aug
1 wk before
11 May
22 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
30 Mar – 13 Apr
24 Jun
4-6 wk
11 May
22 Jul
1 wk before
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
8 – 22 Apr
3 Jun
2-4 wk
6 May
17 Jun
2 wk before
6 May
7 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
11 May
17 Jun
1 wk before
11 May
7 Jun
1 wk before
Spinach
Spinacia oleracea
5 – 12 Apr
26 Jul
3-4 wk
3 May
16 Aug
2 wk before
30 Apr
6 Aug
3 wk before
Sweet potato
Ipomoea batatas
14 – 28 Jun
4-6 wk
26 Jul
10 wk after
Garden tomato
Solanum lycopersicum
9 – 23 May
6-8 wk
4 Jul
7 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
6 – 20 Jun
22 Jun
2-4 wk
4 Jul
6 Jul
7 wk after
23 Jun
26 Jun
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
20 Apr – 4 May
24 Jun
4-6 wk
1 Jun
22 Jul
2 wk after
Garden pea
Pisum sativum
5 – 12 Apr
26 Jun
3-4 wk
3 May
17 Jul
2 wk before
11 May
7 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
31 May – 14 Jun
4-6 wk
12 Jul
8 wk after
Lemon balm
Melissa officinalis
9 – 23 Mar
22 May
8-10 wk
18 May
17 Jul
Vid frost
8 Jun
7 Jul
3 wk after
Dill
Anethum graveolens
11 May
27 Jul
1 wk before
Wild chives
Allium schoenoprasum
26 Feb – 12 Mar
5 Jun
6-8 wk
23 Apr
17 Jul
4 wk before
11 May
7 Jul
1 wk before
Spearmint
Mentha spicata
8 Feb – 8 Mar
22 May
8-12 wk
3 May
17 Jul
2 wk before
8 Jun
7 Jul
3 wk after
Coriander
Coriandrum sativum
28 May
6 Aug
1 wk after
Garden sage
Salvia officinalis
7 – 21 Apr
7 May
8-10 wk
16 Jun
2 Jul
4 wk after
Common thyme
Thymus vulgaris
23 Mar – 6 Apr
12 May
8-10 wk
1 Jun
7 Jul
2 wk after
Oregano
Origanum vulgare
29 Mar – 12 Apr
26 May
6-8 wk
24 May
7 Jul
1 wk after
8 Jun
27 Jun
3 wk after
Parsley
Petroselinum crispum
8 – 22 Mar
26 May
6-8 wk
3 May
7 Jul
2 wk before
11 May
27 Jun
1 wk before
Rosemary
Salvia rosmarinus
10 Mar – 7 Apr
8 Apr
10-14 wk
16 Jun
17 Jun
4 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
14 – 21 Jun
3-4 wk
12 Jul
8 wk after
Cornflower
Centaurea cyanus
3 May
17 Jul
2 wk before
11 May
7 Jul
1 wk before
Statice
Limonium sinuatum
25 Apr – 9 May
8 May
8-10 wk
4 Jul
7 wk after
Sweet William
Dianthus barbatus
8 – 22 Mar
6-8 wk
3 May
2 wk before
23 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
9 – 23 May
22 May
6-8 wk
4 Jul
7 wk after
26 Jul
10 wk after
Pinnate dahlia
Dahlia × pinnata
3 – 17 May
26 May
6-8 wk
28 Jun
7 Jul
6 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
13 Apr – 11 May
9 Jun
4-8 wk
8 Jun
7 Jul
3 wk after
8 Jun
27 Jun
3 wk after
Foxglove
Digitalis purpurea
22 Feb – 8 Mar
8-10 wk
3 May
2 wk before
28 May
1 wk after
Busy lizzie
Impatiens walleriana
19 Apr – 17 May
3 Jul
8-12 wk
12 Jul
28 Aug
8 wk after
Creeping zinnia
Sanvitalia procumbens
9 – 23 May
1 Jun
6-8 wk
4 Jul
13 Jul
7 wk after
Hyacinth bean
Dolichos lablab
Season too short
23 May – 6 Jun
4-6 wk
4 Jul
7 wk after
Chinese lantern
Physalis alkekengi
7 – 21 Apr
22 Apr
8-10 wk
16 Jun
17 Jun
4 wk after
Love in a mist
Nigella damascena
11 May
22 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
9 – 23 May
12 May
6-8 wk
4 Jul
7 wk after
26 Jul
10 wk after
Purple-top vervain
Verbena bonariensis
24 Mar – 21 Apr
22 Apr
8-12 wk
16 Jun
17 Jun
4 wk after
Cardoon
Cynara cardunculus
Fleece
30 Mar – 27 Apr
8-12 wk
22 Jun
5 wk after
Regal-foxtail
Ptilotus nobilis
19 Apr – 17 May
21 Apr
8-12 wk
12 Jul
8 wk after
Globe amaranth
Gomphrena globosa
17 – 31 May
6-8 wk
12 Jul
8 wk after
Corn poppy
Papaver rhoeas
11 May
7 Jul
1 wk before
Snapdragon
Antirrhinum majus
16 Feb – 16 Mar
12 May
8-12 wk
11 May
7 Jul
1 wk before
23 May
27 Jun
1 wk after
Flossflower
Ageratum houstonianum
3 – 17 May
18 May
8-10 wk
12 Jul
13 Jul
8 wk after
Sweet pea
Lathyrus odoratus
8 – 29 Mar
2 Jun
5-8 wk
3 May
7 Jul
2 wk before
Stock
Matthiola incana
16 – 30 Mar
5 Jun
6-8 wk
11 May
17 Jul
1 wk before
28 May
7 Jul
1 wk after
Wormwood
Artemisia absinthium
8 – 22 Mar
6 May
6-8 wk
3 May
17 Jun
2 wk before
28 May
7 Jun
1 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
23 May – 6 Jun
31 May
4-6 wk
4 Jul
7 wk after
Garden pansy
Viola × wittrockiana
12 – 26 Feb
22 May
8-10 wk
23 Apr
17 Jul
4 wk before
23 May
7 Jul
1 wk after
Petunia
Petunia
11 Apr – 9 May
8 May
8-12 wk
4 Jul
7 wk after
Sweet Scabious
Scabiosa atropurpurea
21 Apr – 5 May
6 May
6-8 wk
16 Jun
17 Jun
4 wk after
23 Jun
5 wk after
Common zinnia
Zinnia elegans
23 May – 6 Jun
15 Jun
4-6 wk
4 Jul
13 Jul
7 wk after
Common morning glory
Ipomoea purpurea
7 – 21 Jun
3-5 wk
12 Jul
8 wk after
Garden cosmos
Cosmos bipinnatus
23 May – 6 Jun
9 Jun
4-6 wk
4 Jul
7 Jul
7 wk after
23 Jun
27 Jun
5 wk after
Scarlet milkweed
Asclepias curassavica
23 Apr – 21 May
21 May
8-12 wk
16 Jul
16 Jul
8 wk after
Bee balm
Monarda didyma
23 Feb – 23 Mar
22 Apr
8-12 wk
18 May
17 Jun
Vid frost
8 Jun
3 wk after
Yarrow
Achillea millefolium
8 – 22 Mar
6 Apr
6-8 wk
3 May
18 May
2 wk before
28 May
1 wk after
Safflower
Carthamus tinctorius
3 May
17 Jun
2 wk before
11 May
7 Jun
1 wk before
Iceland poppy
Papaver nudicaule
26 Feb – 12 Mar
26 May
6-8 wk
23 Apr
7 Jul
4 wk before
6 May
27 Jun
2 wk before
Bishop's flower
Ammi majus
16 – 30 Apr
9 Jun
4-6 wk
28 May
7 Jul
1 wk after
28 May
27 Jun
1 wk after
Drumsticks
Pycnosorus globosus
Fleece
11 – 25 Apr
10-12 wk
4 Jul
7 wk after
Sunflower
Helianthus annuus
6 – 13 Jun
16 Jun
3-4 wk
4 Jul
7 Jul
7 wk after
8 Jun
27 Jun
3 wk after
China aster
Callistephus chinensis
9 – 23 May
5 Jun
6-8 wk
4 Jul
17 Jul
7 wk after
23 Jun
7 Jul
5 wk after
Annual phlox
Phlox drummondii
27 Apr – 11 May
1 Jun
6-8 wk
22 Jun
13 Jul
5 wk after
23 Jun
3 Jul
5 wk after
Hollyhock
Alcea rosea
8 – 22 Mar
6-8 wk
3 May
2 wk before
28 May
1 wk after
Alpine delphinium
Delphinium elatum
9 Mar – 6 Apr
22 Apr
8-12 wk
1 Jun
17 Jun
2 wk after
8 Jun
3 wk after
African marigold
Tagetes erecta
9 – 23 May
1 Jun
6-8 wk
4 Jul
13 Jul
7 wk after
Black-eyed Susan
Rudbeckia hirta
21 Apr – 5 May
26 May
6-8 wk
16 Jun
7 Jul
4 wk after
23 Jun
27 Jun
5 wk after
Wood sage
Salvia nemorosa
15 – 29 Mar
12 Apr
8-10 wk
24 May
7 Jun
1 wk after
8 Jun
3 wk after
Black-eyed susan vine
Thunbergia alata
3 – 31 May
15 May
6-10 wk
12 Jul
8 wk after
California goldenpoppy
Eschscholzia californica
11 May
7 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
25 Apr – 9 May
9 May
8-10 wk
4 Jul
4 Jul
7 wk after
Water forget-me-not
Myosotis scorpioides
8 – 22 Mar
6 May
6-8 wk
3 May
17 Jun
2 wk before
28 May
7 Jun
1 wk after