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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) 22 May Frost 1 of 10 years · 20 years of data
Frost-free season 144 days 22 May – 13 Oct
Probability that frost is over

90% = 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)
2 – 16 May
17 Jun
5-7 wk
20 Jun
22 Jul
4 wk after
15 May
12 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
24 Apr – 8 May
29 Jun
4-6 wk
5 Jun
27 Jul
2 wk after
15 May
17 Jul
1 wk before
Chili pepper
Capsicum annuum
Season too short
3 Apr – 1 May
8-12 wk
26 Jun
5 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
9 – 23 Mar
12 Jun
5-7 wk
27 Apr
17 Jul
4 wk before
10 May
7 Jul
2 wk before
Garden cucumber
Cucumis sativus
Season too short
29 May – 5 Jun
3-4 wk
26 Jun
5 wk after
Florence Fennel
Foeniculum vulgare
11 – 18 Jun
4-5 wk
16 Jul
8 wk after
27 Jun
27 Jun
5 wk after
Butter bean
Phaseolus lunatus
Season too short
20 – 27 Jun
3-4 wk
18 Jul
8 wk after
Onion
Allium cepa (Cepa-gruppen)
27 Feb – 27 Mar
2 Apr
8-12 wk
22 May
28 May
Vid frost
1 Jun
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
15 May
17 Jun
1 wk before
15 May
7 Jun
1 wk before
Maize
Zea mays
Season too short
16 – 23 May
3-4 wk
13 Jun
3 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
23 – 30 May
6 Jul
3-4 wk
20 Jun
27 Jul
4 wk after
1 Jun
17 Jul
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
10 May
27 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
9 – 23 Mar
12 Jun
5-7 wk
27 Apr
17 Jul
4 wk before
10 May
7 Jul
2 wk before
Potato
Solanum tuberosum
15 – 29 Apr
9 Jun
4-6 wk
27 May
7 Jul
1 wk after
27 May
27 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
9 – 23 Mar
22 Jun
5-7 wk
27 Apr
27 Jul
4 wk before
15 May
17 Jul
1 wk before
Pumpkin
Cucurbita pepo
Greenhouse
29 May – 5 Jun
13 Jun
3-4 wk
26 Jun
4 Jul
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
23 – 30 May
29 Jun
3-4 wk
20 Jun
20 Jul
4 wk after
1 Jun
10 Jul
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
24 Apr – 8 May
24 Jun
4-6 wk
5 Jun
22 Jul
2 wk after
Lettuce
Lactuca sativa
17 – 24 Apr
11 Jul
3-4 wk
15 May
1 Aug
1 wk before
15 May
22 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
3 – 17 Apr
24 Jun
4-6 wk
15 May
22 Jul
1 wk before
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
12 – 26 Apr
3 Jun
2-4 wk
10 May
17 Jun
2 wk before
10 May
7 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
15 May
17 Jun
1 wk before
15 May
7 Jun
1 wk before
Spinach
Spinacia oleracea
9 – 16 Apr
26 Jul
3-4 wk
7 May
16 Aug
2 wk before
4 May
6 Aug
3 wk before
Sweet potato
Ipomoea batatas
18 Jun – 2 Jul
4-6 wk
30 Jul
10 wk after
Garden tomato
Solanum lycopersicum
Season too short
18 Apr – 2 May
18 Apr
6-8 wk
13 Jun
3 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Greenhouse
16 – 30 May
15 Jun
2-4 wk
13 Jun
29 Jun
3 wk after
1 Jun
19 Jun
1 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
24 Apr – 8 May
24 Jun
4-6 wk
5 Jun
22 Jul
2 wk after
Garden pea
Pisum sativum
9 – 16 Apr
26 Jun
3-4 wk
7 May
17 Jul
2 wk before
15 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
Greenhouse
15 – 29 May
22 May
4-6 wk
26 Jun
5 wk after
Lemon balm
Melissa officinalis
13 – 27 Mar
22 May
8-10 wk
22 May
17 Jul
Vid frost
12 Jun
7 Jul
3 wk after
Dill
Anethum graveolens
15 May
27 Jul
1 wk before
Wild chives
Allium schoenoprasum
2 – 16 Mar
5 Jun
6-8 wk
27 Apr
17 Jul
4 wk before
15 May
7 Jul
1 wk before
Spearmint
Mentha spicata
12 Feb – 12 Mar
22 May
8-12 wk
7 May
17 Jul
2 wk before
12 Jun
7 Jul
3 wk after
Coriander
Coriandrum sativum
1 Jun
6 Aug
1 wk after
Garden sage
Salvia officinalis
11 – 25 Apr
7 May
8-10 wk
20 Jun
2 Jul
4 wk after
Common thyme
Thymus vulgaris
27 Mar – 10 Apr
12 May
8-10 wk
5 Jun
7 Jul
2 wk after
Oregano
Origanum vulgare
2 – 16 Apr
26 May
6-8 wk
28 May
7 Jul
1 wk after
12 Jun
27 Jun
3 wk after
Parsley
Petroselinum crispum
12 – 26 Mar
26 May
6-8 wk
7 May
7 Jul
2 wk before
15 May
27 Jun
1 wk before
Rosemary
Salvia rosmarinus
14 Mar – 11 Apr
8 Apr
10-14 wk
20 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
Greenhouse
29 May – 5 Jun
29 May
3-4 wk
26 Jun
5 wk after
Cornflower
Centaurea cyanus
7 May
17 Jul
2 wk before
15 May
7 Jul
1 wk before
Statice
Limonium sinuatum
Fleece
17 Apr – 1 May
19 Apr
8-10 wk
26 Jun
5 wk after
Sweet William
Dianthus barbatus
12 – 26 Mar
6-8 wk
7 May
2 wk before
27 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
1 – 15 May
3 May
6-8 wk
26 Jun
5 wk after
7 Jul
7 wk after
Pinnate dahlia
Dahlia × pinnata
Fleece
25 Apr – 9 May
12 May
6-8 wk
20 Jun
23 Jun
4 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
17 Apr – 15 May
12 May
4-8 wk
12 Jun
3 wk after
12 Jun
3 wk after
Foxglove
Digitalis purpurea
26 Feb – 12 Mar
8-10 wk
7 May
2 wk before
1 Jun
1 wk after
Busy lizzie
Impatiens walleriana
23 Apr – 21 May
20 May
8-12 wk
16 Jul
8 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
1 – 15 May
13 May
6-8 wk
26 Jun
5 wk after
Hyacinth bean
Dolichos lablab
Season too short
27 May – 10 Jun
4-6 wk
8 Jul
7 wk after
Chinese lantern
Physalis alkekengi
11 – 25 Apr
22 Apr
8-10 wk
20 Jun
4 wk after
Love in a mist
Nigella damascena
15 May
22 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
Greenhouse
18 Apr – 2 May
8 May
6-8 wk
13 Jun
19 Jun
3 wk after
19 Jun
4 wk after
Purple-top vervain
Verbena bonariensis
28 Mar – 25 Apr
22 Apr
8-12 wk
20 Jun
4 wk after
Cardoon
Cynara cardunculus
15 Apr – 13 May
8-12 wk
8 Jul
7 wk after
Regal-foxtail
Ptilotus nobilis
Season too short
3 Apr – 1 May
14 Apr
8-12 wk
26 Jun
5 wk after
Globe amaranth
Gomphrena globosa
Season too short
1 – 15 May
6-8 wk
26 Jun
5 wk after
Corn poppy
Papaver rhoeas
15 May
7 Jul
1 wk before
Snapdragon
Antirrhinum majus
20 Feb – 20 Mar
12 May
8-12 wk
15 May
7 Jul
1 wk before
27 May
27 Jun
1 wk after
Flossflower
Ageratum houstonianum
Fleece
29 Apr – 13 May
29 Apr
8-10 wk
8 Jul
7 wk after
Sweet pea
Lathyrus odoratus
12 Mar – 2 Apr
2 Jun
5-8 wk
7 May
7 Jul
2 wk before
Stock
Matthiola incana
20 Mar – 3 Apr
5 Jun
6-8 wk
15 May
17 Jul
1 wk before
1 Jun
7 Jul
1 wk after
Wormwood
Artemisia absinthium
12 – 26 Mar
6 May
6-8 wk
7 May
17 Jun
2 wk before
1 Jun
7 Jun
1 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
15 – 29 May
4-6 wk
26 Jun
5 wk after
Garden pansy
Viola × wittrockiana
16 Feb – 2 Mar
22 May
8-10 wk
27 Apr
17 Jul
4 wk before
27 May
7 Jul
1 wk after
Petunia
Petunia
Fleece
3 Apr – 1 May
19 Apr
8-12 wk
26 Jun
5 wk after
Sweet Scabious
Scabiosa atropurpurea
25 Apr – 9 May
6 May
6-8 wk
20 Jun
4 wk after
27 Jun
5 wk after
Common zinnia
Zinnia elegans
Fleece
15 – 29 May
22 May
4-6 wk
26 Jun
5 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
22 May – 5 Jun
29 May
3-5 wk
26 Jun
5 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
15 – 29 May
26 May
4-6 wk
26 Jun
5 wk after
12 Jun
13 Jun
3 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
23 Apr – 21 May
24 Apr
8-12 wk
16 Jul
8 wk after
Bee balm
Monarda didyma
27 Feb – 27 Mar
22 Apr
8-12 wk
22 May
17 Jun
Vid frost
12 Jun
3 wk after
Yarrow
Achillea millefolium
12 – 26 Mar
6 Apr
6-8 wk
7 May
18 May
2 wk before
1 Jun
1 wk after
Safflower
Carthamus tinctorius
7 May
17 Jun
2 wk before
15 May
7 Jun
1 wk before
Iceland poppy
Papaver nudicaule
2 – 16 Mar
26 May
6-8 wk
27 Apr
7 Jul
4 wk before
10 May
27 Jun
2 wk before
Bishop's flower
Ammi majus
20 Apr – 4 May
9 Jun
4-6 wk
1 Jun
7 Jul
1 wk after
1 Jun
27 Jun
1 wk after
Drumsticks
Pycnosorus globosus
Season too short
3 – 17 Apr
10-12 wk
26 Jun
5 wk after
Sunflower
Helianthus annuus
10 – 17 Jun
16 Jun
3-4 wk
8 Jul
7 wk after
12 Jun
27 Jun
3 wk after
China aster
Callistephus chinensis
13 – 27 May
5 Jun
6-8 wk
8 Jul
17 Jul
7 wk after
27 Jun
7 Jul
5 wk after
Annual phlox
Phlox drummondii
1 – 15 May
3 May
6-8 wk
26 Jun
5 wk after
27 Jun
5 wk after
Hollyhock
Alcea rosea
12 – 26 Mar
6-8 wk
7 May
2 wk before
1 Jun
1 wk after
Alpine delphinium
Delphinium elatum
13 Mar – 10 Apr
22 Apr
8-12 wk
5 Jun
17 Jun
2 wk after
12 Jun
3 wk after
African marigold
Tagetes erecta
Fleece
1 – 15 May
13 May
6-8 wk
26 Jun
5 wk after
Black-eyed Susan
Rudbeckia hirta
25 Apr – 9 May
26 May
6-8 wk
20 Jun
7 Jul
4 wk after
27 Jun
27 Jun
5 wk after
Wood sage
Salvia nemorosa
19 Mar – 2 Apr
12 Apr
8-10 wk
28 May
7 Jun
1 wk after
12 Jun
3 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
17 Apr – 15 May
8 May
6-10 wk
26 Jun
5 wk after
California goldenpoppy
Eschscholzia californica
15 May
7 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
29 Apr – 13 May
12 May
8-10 wk
8 Jul
7 wk after
Water forget-me-not
Myosotis scorpioides
12 – 26 Mar
6 May
6-8 wk
7 May
17 Jun
2 wk before
1 Jun
7 Jun
1 wk after