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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) 17 May Frost 1 of 10 years · 20 years of data
Frost-free season 152 days 17 May – 16 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)
29 Mar – 12 Apr
17 Jun
5-7 wk
17 May
22 Jul
0 wk
10 May
12 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
5 – 19 Apr
29 Jun
4-6 wk
17 May
27 Jul
0 wk
10 May
17 Jul
1 wk before
Chili pepper
Capsicum annuum
Season too short
5 Mar – 2 Apr
8-12 wk
28 May
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
29 Mar – 12 Apr
12 Jun
5-7 wk
17 May
17 Jul
0 wk
5 May
7 Jul
2 wk before
Garden cucumber
Cucumis sativus
Greenhouse
30 Apr – 7 May
1 Jun
3-4 wk
28 May
22 Jun
2 wk after
Florence Fennel
Foeniculum vulgare
18 – 25 May
9 Jun
4-5 wk
22 Jun
7 Jul
5 wk after
22 Jun
27 Jun
5 wk after
Butter bean
Phaseolus lunatus
Season too short
1 – 8 Jun
3-4 wk
29 Jun
6 wk after
Onion
Allium cepa (Cepa-gruppen)
22 Feb – 22 Mar
2 Apr
8-12 wk
17 May
28 May
0 wk
27 May
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
10 May
17 Jun
1 wk before
10 May
7 Jun
1 wk before
Maize
Zea mays
Fleece
30 Apr – 7 May
3-4 wk
28 May
2 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
25 Apr – 2 May
6 Jul
3-4 wk
23 May
27 Jul
1 wk after
27 May
17 Jul
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
17 May
7 Jul
0 wk
5 May
27 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
29 Mar – 12 Apr
12 Jun
5-7 wk
17 May
17 Jul
0 wk
5 May
7 Jul
2 wk before
Potato
Solanum tuberosum
10 – 24 Apr
9 Jun
4-6 wk
22 May
7 Jul
1 wk after
22 May
27 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
29 Mar – 12 Apr
22 Jun
5-7 wk
17 May
27 Jul
0 wk
10 May
17 Jul
1 wk before
Pumpkin
Cucurbita pepo
Fleece
8 – 15 May
6 Jun
3-4 wk
5 Jun
27 Jun
3 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
25 Apr – 2 May
28 Jun
3-4 wk
23 May
19 Jul
1 wk after
27 May
9 Jul
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
5 – 19 Apr
24 Jun
4-6 wk
17 May
22 Jul
0 wk
Lettuce
Lactuca sativa
19 – 26 Apr
11 Jul
3-4 wk
17 May
1 Aug
0 wk
10 May
22 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
5 – 19 Apr
24 Jun
4-6 wk
17 May
22 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
7 – 21 Apr
3 Jun
2-4 wk
5 May
17 Jun
2 wk before
5 May
7 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
10 May
17 Jun
1 wk before
10 May
7 Jun
1 wk before
Spinach
Spinacia oleracea
19 – 26 Apr
26 Jul
3-4 wk
17 May
16 Aug
0 wk
29 Apr
6 Aug
3 wk before
Sweet potato
Ipomoea batatas
13 – 27 Jun
4-6 wk
25 Jul
10 wk after
Garden tomato
Solanum lycopersicum
Fleece
2 – 16 Apr
6-8 wk
28 May
2 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
30 Apr – 14 May
8 Jun
2-4 wk
28 May
22 Jun
2 wk after
7 Jun
12 Jun
3 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
5 – 19 Apr
24 Jun
4-6 wk
17 May
22 Jul
0 wk
Garden pea
Pisum sativum
19 – 26 Apr
26 Jun
3-4 wk
17 May
17 Jul
0 wk
10 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
Fleece
24 Apr – 8 May
15 May
4-6 wk
5 Jun
12 Jun
3 wk after
Lemon balm
Melissa officinalis
8 – 22 Mar
22 May
8-10 wk
17 May
17 Jul
0 wk
7 Jun
7 Jul
3 wk after
Dill
Anethum graveolens
10 May
27 Jul
1 wk before
Wild chives
Allium schoenoprasum
22 Mar – 5 Apr
5 Jun
6-8 wk
17 May
17 Jul
0 wk
10 May
7 Jul
1 wk before
Spearmint
Mentha spicata
22 Feb – 22 Mar
22 May
8-12 wk
17 May
17 Jul
0 wk
7 Jun
7 Jul
3 wk after
Coriander
Coriandrum sativum
17 May
16 Aug
0 wk
27 May
6 Aug
1 wk after
Garden sage
Salvia officinalis
14 – 28 Mar
7 May
8-10 wk
23 May
2 Jul
1 wk after
Common thyme
Thymus vulgaris
8 – 22 Mar
12 May
8-10 wk
17 May
7 Jul
0 wk
Oregano
Origanum vulgare
22 Mar – 5 Apr
26 May
6-8 wk
17 May
7 Jul
0 wk
7 Jun
27 Jun
3 wk after
Parsley
Petroselinum crispum
22 Mar – 5 Apr
26 May
6-8 wk
17 May
7 Jul
0 wk
10 May
27 Jun
1 wk before
Rosemary
Salvia rosmarinus
14 Feb – 14 Mar
8 Apr
10-14 wk
23 May
17 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
Fleece
8 – 15 May
22 May
3-4 wk
5 Jun
12 Jun
3 wk after
Cornflower
Centaurea cyanus
17 May
17 Jul
0 wk
10 May
7 Jul
1 wk before
Statice
Limonium sinuatum
27 Mar – 10 Apr
13 Apr
8-10 wk
5 Jun
8 Jun
3 wk after
Sweet William
Dianthus barbatus
22 Mar – 5 Apr
6-8 wk
17 May
0 wk
22 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
10 – 24 Apr
27 Apr
6-8 wk
5 Jun
8 Jun
3 wk after
25 Jul
10 wk after
Pinnate dahlia
Dahlia × pinnata
5 – 19 Apr
4 May
6-8 wk
31 May
15 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
12 Apr – 10 May
18 May
4-8 wk
7 Jun
15 Jun
3 wk after
7 Jun
3 wk after
Foxglove
Digitalis purpurea
8 – 22 Mar
8-10 wk
17 May
0 wk
27 May
1 wk after
Busy lizzie
Impatiens walleriana
30 Mar – 27 Apr
2 Jun
8-12 wk
22 Jun
28 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
10 – 24 Apr
7 May
6-8 wk
5 Jun
18 Jun
3 wk after
Hyacinth bean
Dolichos lablab
Season too short
24 Apr – 8 May
4-6 wk
5 Jun
3 wk after
Chinese lantern
Physalis alkekengi
14 – 28 Mar
22 Apr
8-10 wk
23 May
17 Jun
1 wk after
Love in a mist
Nigella damascena
17 May
2 Jul
0 wk
10 May
22 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
10 – 24 Apr
17 Apr
6-8 wk
5 Jun
3 wk after
25 Jul
10 wk after
Purple-top vervain
Verbena bonariensis
28 Feb – 28 Mar
22 Apr
8-12 wk
23 May
17 Jun
1 wk after
Cardoon
Cynara cardunculus
13 Mar – 10 Apr
23 Mar
8-12 wk
5 Jun
3 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
13 Mar – 10 Apr
7 Apr
8-12 wk
5 Jun
3 wk after
Globe amaranth
Gomphrena globosa
Fleece
10 – 24 Apr
21 Apr
6-8 wk
5 Jun
3 wk after
Corn poppy
Papaver rhoeas
17 May
17 Jul
0 wk
10 May
7 Jul
1 wk before
Snapdragon
Antirrhinum majus
22 Feb – 22 Mar
12 May
8-12 wk
17 May
7 Jul
0 wk
22 May
27 Jun
1 wk after
Flossflower
Ageratum houstonianum
13 – 27 Apr
23 Apr
8-10 wk
22 Jun
5 wk after
Sweet pea
Lathyrus odoratus
22 Mar – 12 Apr
2 Jun
5-8 wk
17 May
7 Jul
0 wk
Stock
Matthiola incana
22 Mar – 5 Apr
5 Jun
6-8 wk
17 May
17 Jul
0 wk
27 May
7 Jul
1 wk after
Wormwood
Artemisia absinthium
22 Mar – 5 Apr
6 May
6-8 wk
17 May
17 Jun
0 wk
27 May
7 Jun
1 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
24 Apr – 8 May
30 Apr
4-6 wk
5 Jun
3 wk after
Garden pansy
Viola × wittrockiana
8 – 22 Mar
22 May
8-10 wk
17 May
17 Jul
0 wk
22 May
7 Jul
1 wk after
Petunia
Petunia
13 Mar – 10 Apr
13 Apr
8-12 wk
5 Jun
8 Jun
3 wk after
Sweet Scabious
Scabiosa atropurpurea
28 Mar – 11 Apr
6 May
6-8 wk
23 May
17 Jun
1 wk after
22 Jun
5 wk after
Common zinnia
Zinnia elegans
24 Apr – 8 May
15 May
4-6 wk
5 Jun
12 Jun
3 wk after
Common morning glory
Ipomoea purpurea
Fleece
1 – 15 May
22 May
3-5 wk
5 Jun
12 Jun
3 wk after
Garden cosmos
Cosmos bipinnatus
24 Apr – 8 May
18 May
4-6 wk
5 Jun
15 Jun
3 wk after
22 Jun
5 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
30 Mar – 27 Apr
7 May
8-12 wk
22 Jun
2 Jul
5 wk after
Bee balm
Monarda didyma
22 Feb – 22 Mar
22 Apr
8-12 wk
17 May
17 Jun
0 wk
7 Jun
7 Jun
3 wk after
Yarrow
Achillea millefolium
22 Mar – 5 Apr
6 Apr
6-8 wk
17 May
18 May
0 wk
27 May
1 wk after
Safflower
Carthamus tinctorius
17 May
17 Jun
0 wk
10 May
7 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
22 Mar – 5 Apr
26 May
6-8 wk
17 May
7 Jul
0 wk
8 Apr
27 Jun
6 wk before
Bishop's flower
Ammi majus
5 – 19 Apr
9 Jun
4-6 wk
17 May
7 Jul
0 wk
27 May
27 Jun
1 wk after
Drumsticks
Pycnosorus globosus
Fleece
13 – 27 Mar
17 Mar
10-12 wk
5 Jun
3 wk after
Sunflower
Helianthus annuus
8 – 15 May
16 Jun
3-4 wk
5 Jun
7 Jul
3 wk after
7 Jun
27 Jun
3 wk after
China aster
Callistephus chinensis
10 – 24 Apr
5 Jun
6-8 wk
5 Jun
17 Jul
3 wk after
22 Jun
7 Jul
5 wk after
Annual phlox
Phlox drummondii
2 – 16 Apr
7 May
6-8 wk
28 May
18 Jun
2 wk after
22 Jun
5 wk after
Hollyhock
Alcea rosea
22 Mar – 5 Apr
6-8 wk
17 May
0 wk
27 May
1 wk after
Alpine delphinium
Delphinium elatum
22 Feb – 22 Mar
22 Apr
8-12 wk
17 May
17 Jun
0 wk
7 Jun
7 Jun
3 wk after
African marigold
Tagetes erecta
10 – 24 Apr
7 May
6-8 wk
5 Jun
18 Jun
3 wk after
Black-eyed Susan
Rudbeckia hirta
28 Mar – 11 Apr
26 May
6-8 wk
23 May
7 Jul
1 wk after
22 Jun
27 Jun
5 wk after
Wood sage
Salvia nemorosa
8 – 22 Mar
12 Apr
8-10 wk
17 May
7 Jun
0 wk
7 Jun
3 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
27 Mar – 24 Apr
1 May
6-10 wk
5 Jun
12 Jun
3 wk after
California goldenpoppy
Eschscholzia californica
17 May
17 Jul
0 wk
10 May
7 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
27 Mar – 10 Apr
12 May
8-10 wk
5 Jun
7 Jul
3 wk after
Water forget-me-not
Myosotis scorpioides
22 Mar – 5 Apr
6 May
6-8 wk
17 May
17 Jun
0 wk
27 May
7 Jun
1 wk after