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0.2°
Near frost tonight at 05:00. Bring in or cover sensitive plants
-4.0°
Last 24h: Moderate frost recorded tonight at 05:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 2 May Frost 9 of 10 years · 20 years of data
Frost-free season 145 days 2 May – 24 Sep
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)
14 – 28 Mar
17 Jun
5-7 wk
2 May
22 Jul
0 wk
25 Apr
12 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
21 Mar – 4 Apr
29 Jun
4-6 wk
2 May
27 Jul
0 wk
25 Apr
17 Jul
1 wk before
Chili pepper
Capsicum annuum
Season too short
18 Feb – 18 Mar
8-12 wk
13 May
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
14 – 28 Mar
12 Jun
5-7 wk
2 May
17 Jul
0 wk
20 Apr
7 Jul
2 wk before
Garden cucumber
Cucumis sativus
Season too short
15 – 22 Apr
3-4 wk
13 May
2 wk after
Florence Fennel
Foeniculum vulgare
3 – 10 May
26 May
4-5 wk
7 Jun
23 Jun
5 wk after
7 Jun
13 Jun
5 wk after
Butter bean
Phaseolus lunatus
Season too short
17 – 24 May
3-4 wk
14 Jun
6 wk after
Onion
Allium cepa (Cepa-gruppen)
7 Feb – 7 Mar
24 Mar
8-12 wk
2 May
19 May
0 wk
12 May
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
25 Apr
8 Jun
1 wk before
25 Apr
29 May
1 wk before
Maize
Zea mays
Season too short
4 – 11 Apr
3-4 wk
2 May
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
10 – 17 Apr
4 Jul
3-4 wk
8 May
25 Jul
1 wk after
12 May
15 Jul
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
2 May
7 Jul
0 wk
20 Apr
27 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
14 – 28 Mar
12 Jun
5-7 wk
2 May
17 Jul
0 wk
20 Apr
7 Jul
2 wk before
Potato
Solanum tuberosum
26 Mar – 9 Apr
25 May
4-6 wk
7 May
22 Jun
1 wk after
7 May
12 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
14 – 28 Mar
22 Jun
5-7 wk
2 May
27 Jul
0 wk
25 Apr
17 Jul
1 wk before
Pumpkin
Cucurbita pepo
Greenhouse
15 – 22 Apr
29 May
3-4 wk
13 May
19 Jun
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
10 – 17 Apr
8 Jun
3-4 wk
8 May
29 Jun
1 wk after
12 May
19 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
21 Mar – 4 Apr
24 Jun
4-6 wk
2 May
22 Jul
0 wk
Lettuce
Lactuca sativa
4 – 11 Apr
11 Jul
3-4 wk
2 May
1 Aug
0 wk
25 Apr
22 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
21 Mar – 4 Apr
24 Jun
4-6 wk
2 May
22 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
23 Mar – 6 Apr
1 Jun
2-4 wk
20 Apr
15 Jun
2 wk before
20 Apr
5 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
25 Apr
8 Jun
1 wk before
25 Apr
29 May
1 wk before
Spinach
Spinacia oleracea
4 – 11 Apr
26 Jul
3-4 wk
2 May
16 Aug
0 wk
14 Apr
6 Aug
3 wk before
Sweet potato
Ipomoea batatas
29 May – 12 Jun
4-6 wk
10 Jul
10 wk after
Garden tomato
Solanum lycopersicum
Season too short
7 – 21 Mar
6-8 wk
2 May
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Greenhouse
4 – 18 Apr
31 May
2-4 wk
2 May
14 Jun
0 wk
12 May
4 Jun
1 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
21 Mar – 4 Apr
24 Jun
4-6 wk
2 May
22 Jul
0 wk
Garden pea
Pisum sativum
4 – 11 Apr
26 Jun
3-4 wk
2 May
17 Jul
0 wk
25 Apr
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
1 – 15 Apr
7 May
4-6 wk
13 May
4 Jun
2 wk after
Lemon balm
Melissa officinalis
21 Feb – 7 Mar
22 May
8-10 wk
2 May
17 Jul
0 wk
23 May
7 Jul
3 wk after
Dill
Anethum graveolens
25 Apr
25 Jul
1 wk before
Wild chives
Allium schoenoprasum
7 – 21 Mar
5 Jun
6-8 wk
2 May
17 Jul
0 wk
25 Apr
7 Jul
1 wk before
Spearmint
Mentha spicata
7 Feb – 7 Mar
22 May
8-12 wk
2 May
17 Jul
0 wk
23 May
7 Jul
3 wk after
Coriander
Coriandrum sativum
2 May
14 Aug
0 wk
12 May
4 Aug
1 wk after
Garden sage
Salvia officinalis
27 Feb – 13 Mar
7 May
8-10 wk
8 May
2 Jul
1 wk after
Common thyme
Thymus vulgaris
21 Feb – 7 Mar
12 May
8-10 wk
2 May
7 Jul
0 wk
Oregano
Origanum vulgare
7 – 21 Mar
26 May
6-8 wk
2 May
7 Jul
0 wk
23 May
27 Jun
3 wk after
Parsley
Petroselinum crispum
7 – 21 Mar
26 May
6-8 wk
2 May
7 Jul
0 wk
25 Apr
27 Jun
1 wk before
Rosemary
Salvia rosmarinus
30 Jan – 27 Feb
29 Mar
10-14 wk
8 May
7 Jun
1 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
15 – 22 Apr
14 May
3-4 wk
13 May
4 Jun
2 wk after
Cornflower
Centaurea cyanus
2 May
17 Jul
0 wk
25 Apr
7 Jul
1 wk before
Statice
Limonium sinuatum
Fleece
4 – 18 Mar
31 Mar
8-10 wk
13 May
26 May
2 wk after
Sweet William
Dianthus barbatus
7 – 21 Mar
6-8 wk
2 May
0 wk
7 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
18 Mar – 1 Apr
14 Apr
6-8 wk
13 May
26 May
2 wk after
17 Jun
7 wk after
Pinnate dahlia
Dahlia × pinnata
21 Mar – 4 Apr
13 Apr
6-8 wk
16 May
25 May
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
28 Mar – 25 Apr
27 Apr
4-8 wk
23 May
25 May
3 wk after
23 May
3 wk after
Foxglove
Digitalis purpurea
21 Feb – 7 Mar
8-10 wk
2 May
0 wk
12 May
1 wk after
Busy lizzie
Impatiens walleriana
Fleece
26 Feb – 26 Mar
25 May
8-12 wk
21 May
20 Jul
3 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
18 Mar – 1 Apr
24 Apr
6-8 wk
13 May
5 Jun
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
9 – 23 Apr
4-6 wk
21 May
3 wk after
Chinese lantern
Physalis alkekengi
27 Feb – 13 Mar
20 Apr
8-10 wk
8 May
15 Jun
1 wk after
Love in a mist
Nigella damascena
2 May
2 Jul
0 wk
25 Apr
22 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
Fleece
18 Mar – 1 Apr
4 Apr
6-8 wk
13 May
16 May
2 wk after
17 Jun
7 wk after
Purple-top vervain
Verbena bonariensis
13 Feb – 13 Mar
20 Apr
8-12 wk
8 May
15 Jun
1 wk after
Cardoon
Cynara cardunculus
Fleece
18 Feb – 18 Mar
23 Mar
8-12 wk
13 May
18 May
2 wk after
Regal-foxtail
Ptilotus nobilis
Greenhouse
18 Feb – 18 Mar
30 Mar
8-12 wk
13 May
25 May
2 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
18 Mar – 1 Apr
13 Apr
6-8 wk
13 May
25 May
2 wk after
Corn poppy
Papaver rhoeas
2 May
17 Jul
0 wk
25 Apr
7 Jul
1 wk before
Snapdragon
Antirrhinum majus
7 Feb – 7 Mar
12 May
8-12 wk
2 May
7 Jul
0 wk
7 May
27 Jun
1 wk after
Flossflower
Ageratum houstonianum
Fleece
12 – 26 Mar
10 Apr
8-10 wk
21 May
5 Jun
3 wk after
Sweet pea
Lathyrus odoratus
7 – 28 Mar
2 Jun
5-8 wk
2 May
7 Jul
0 wk
Stock
Matthiola incana
7 – 21 Mar
5 Jun
6-8 wk
2 May
17 Jul
0 wk
12 May
7 Jul
1 wk after
Wormwood
Artemisia absinthium
7 – 21 Mar
6 May
6-8 wk
2 May
17 Jun
0 wk
12 May
7 Jun
1 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
1 – 15 Apr
22 Apr
4-6 wk
13 May
20 May
2 wk after
Garden pansy
Viola × wittrockiana
21 Feb – 7 Mar
22 May
8-10 wk
2 May
17 Jul
0 wk
7 May
7 Jul
1 wk after
Petunia
Petunia
Fleece
18 Feb – 18 Mar
31 Mar
8-12 wk
13 May
26 May
2 wk after
Sweet Scabious
Scabiosa atropurpurea
13 – 27 Mar
4 May
6-8 wk
8 May
15 Jun
1 wk after
7 Jun
5 wk after
Common zinnia
Zinnia elegans
Fleece
1 – 15 Apr
7 May
4-6 wk
13 May
4 Jun
2 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
8 – 22 Apr
14 May
3-5 wk
13 May
4 Jun
2 wk after
Garden cosmos
Cosmos bipinnatus
9 – 23 Apr
27 Apr
4-6 wk
21 May
25 May
3 wk after
7 Jun
5 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
26 Feb – 26 Mar
29 Apr
8-12 wk
21 May
24 Jun
3 wk after
Bee balm
Monarda didyma
7 Feb – 7 Mar
22 Apr
8-12 wk
2 May
17 Jun
0 wk
23 May
7 Jun
3 wk after
Yarrow
Achillea millefolium
7 – 21 Mar
6 Apr
6-8 wk
2 May
18 May
0 wk
12 May
1 wk after
Safflower
Carthamus tinctorius
2 May
17 Jun
0 wk
25 Apr
7 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
7 – 21 Mar
26 May
6-8 wk
2 May
7 Jul
0 wk
24 Mar
27 Jun
6 wk before
Bishop's flower
Ammi majus
21 Mar – 4 Apr
9 Jun
4-6 wk
2 May
7 Jul
0 wk
12 May
27 Jun
1 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
18 Feb – 4 Mar
28 Feb
10-12 wk
13 May
2 wk after
Sunflower
Helianthus annuus
23 – 30 Apr
6 Jun
3-4 wk
21 May
27 Jun
3 wk after
23 May
17 Jun
3 wk after
China aster
Callistephus chinensis
26 Mar – 9 Apr
26 May
6-8 wk
21 May
7 Jul
3 wk after
7 Jun
27 Jun
5 wk after
Annual phlox
Phlox drummondii
18 Mar – 1 Apr
3 Apr
6-8 wk
13 May
15 May
2 wk after
7 Jun
5 wk after
Hollyhock
Alcea rosea
7 – 21 Mar
6-8 wk
2 May
0 wk
12 May
1 wk after
Alpine delphinium
Delphinium elatum
7 Feb – 7 Mar
22 Apr
8-12 wk
2 May
17 Jun
0 wk
23 May
7 Jun
3 wk after
African marigold
Tagetes erecta
Fleece
18 Mar – 1 Apr
24 Apr
6-8 wk
13 May
5 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
13 – 27 Mar
16 May
6-8 wk
8 May
27 Jun
1 wk after
7 Jun
17 Jun
5 wk after
Wood sage
Salvia nemorosa
21 Feb – 7 Mar
12 Apr
8-10 wk
2 May
7 Jun
0 wk
23 May
28 May
3 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
4 Mar – 1 Apr
23 Apr
6-10 wk
13 May
4 Jun
2 wk after
California goldenpoppy
Eschscholzia californica
2 May
17 Jul
0 wk
25 Apr
7 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
12 – 26 Mar
28 Apr
8-10 wk
21 May
23 Jun
3 wk after
Water forget-me-not
Myosotis scorpioides
7 – 21 Mar
6 May
6-8 wk
2 May
17 Jun
0 wk
12 May
7 Jun
1 wk after