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0.8°
Last 24h: Near frost recorded tonight at 05:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 4 May Frost 9 of 10 years · 20 years of data
Frost-free season 137 days 4 May – 18 Sep
Probability that frost is over

10% = Half of years are frost-free by this date. More about frost & season →

Custom date
Note: This location has a shorter growing season. Plants marked with Fleece, Greenhouse or Season too short need extra protection or are difficult to grow here.

Vegetables

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