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-3.1°
Last 24h: Slight frost recorded tonight at 05:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 5 May Frost 9 of 10 years · 20 years of data
Frost-free season 139 days 5 May – 21 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)
17 – 31 Mar
17 Jun
5-7 wk
5 May
22 Jul
0 wk
28 Apr
12 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
24 Mar – 7 Apr
29 Jun
4-6 wk
5 May
27 Jul
0 wk
28 Apr
17 Jul
1 wk before
Chili pepper
Capsicum annuum
Season too short
21 Feb – 21 Mar
8-12 wk
16 May
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
17 – 31 Mar
12 Jun
5-7 wk
5 May
17 Jul
0 wk
23 Apr
7 Jul
2 wk before
Garden cucumber
Cucumis sativus
Season too short
18 – 25 Apr
3-4 wk
16 May
2 wk after
Florence Fennel
Foeniculum vulgare
6 – 13 May
26 May
4-5 wk
10 Jun
23 Jun
5 wk after
10 Jun
13 Jun
5 wk after
Butter bean
Phaseolus lunatus
Season too short
20 – 27 May
3-4 wk
17 Jun
6 wk after
Onion
Allium cepa (Cepa-gruppen)
10 Feb – 10 Mar
29 Mar
8-12 wk
5 May
24 May
0 wk
15 May
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
28 Apr
13 Jun
1 wk before
28 Apr
3 Jun
1 wk before
Maize
Zea mays
Season too short
7 – 14 Apr
3-4 wk
5 May
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
13 – 20 Apr
30 Jun
3-4 wk
11 May
21 Jul
1 wk after
15 May
11 Jul
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
5 May
7 Jul
0 wk
23 Apr
27 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
17 – 31 Mar
12 Jun
5-7 wk
5 May
17 Jul
0 wk
23 Apr
7 Jul
2 wk before
Potato
Solanum tuberosum
29 Mar – 12 Apr
30 May
4-6 wk
10 May
27 Jun
1 wk after
10 May
17 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
17 – 31 Mar
22 Jun
5-7 wk
5 May
27 Jul
0 wk
28 Apr
17 Jul
1 wk before
Pumpkin
Cucurbita pepo
Greenhouse
18 – 25 Apr
18 May
3-4 wk
16 May
8 Jun
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
13 – 20 Apr
9 Jun
3-4 wk
11 May
30 Jun
1 wk after
15 May
20 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
24 Mar – 7 Apr
24 Jun
4-6 wk
5 May
22 Jul
0 wk
Lettuce
Lactuca sativa
7 – 14 Apr
11 Jul
3-4 wk
5 May
1 Aug
0 wk
28 Apr
22 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
24 Mar – 7 Apr
24 Jun
4-6 wk
5 May
22 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
26 Mar – 9 Apr
31 May
2-4 wk
23 Apr
14 Jun
2 wk before
23 Apr
4 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
28 Apr
13 Jun
1 wk before
28 Apr
3 Jun
1 wk before
Spinach
Spinacia oleracea
7 – 14 Apr
26 Jul
3-4 wk
5 May
16 Aug
0 wk
17 Apr
6 Aug
3 wk before
Sweet potato
Ipomoea batatas
1 – 15 Jun
4-6 wk
13 Jul
10 wk after
Garden tomato
Solanum lycopersicum
Season too short
10 – 24 Mar
6-8 wk
5 May
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Greenhouse
7 – 21 Apr
20 May
2-4 wk
5 May
3 Jun
0 wk
15 May
24 May
1 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
24 Mar – 7 Apr
24 Jun
4-6 wk
5 May
22 Jul
0 wk
Garden pea
Pisum sativum
7 – 14 Apr
26 Jun
3-4 wk
5 May
17 Jul
0 wk
28 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
4 – 18 Apr
26 Apr
4-6 wk
16 May
24 May
2 wk after
Lemon balm
Melissa officinalis
24 Feb – 10 Mar
22 May
8-10 wk
5 May
17 Jul
0 wk
26 May
7 Jul
3 wk after
Dill
Anethum graveolens
28 Apr
21 Jul
1 wk before
Wild chives
Allium schoenoprasum
10 – 24 Mar
5 Jun
6-8 wk
5 May
17 Jul
0 wk
28 Apr
7 Jul
1 wk before
Spearmint
Mentha spicata
10 Feb – 10 Mar
22 May
8-12 wk
5 May
17 Jul
0 wk
26 May
7 Jul
3 wk after
Coriander
Coriandrum sativum
5 May
10 Aug
0 wk
15 May
31 Jul
1 wk after
Garden sage
Salvia officinalis
2 – 16 Mar
7 May
8-10 wk
11 May
2 Jul
1 wk after
Common thyme
Thymus vulgaris
24 Feb – 10 Mar
12 May
8-10 wk
5 May
7 Jul
0 wk
Oregano
Origanum vulgare
10 – 24 Mar
26 May
6-8 wk
5 May
7 Jul
0 wk
26 May
27 Jun
3 wk after
Parsley
Petroselinum crispum
10 – 24 Mar
26 May
6-8 wk
5 May
7 Jul
0 wk
28 Apr
27 Jun
1 wk before
Rosemary
Salvia rosmarinus
2 Feb – 2 Mar
26 Mar
10-14 wk
11 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
Greenhouse
18 – 25 Apr
3 May
3-4 wk
16 May
24 May
2 wk after
Cornflower
Centaurea cyanus
5 May
17 Jul
0 wk
28 Apr
7 Jul
1 wk before
Statice
Limonium sinuatum
Fleece
7 – 21 Mar
27 Mar
8-10 wk
16 May
22 May
2 wk after
Sweet William
Dianthus barbatus
10 – 24 Mar
6-8 wk
5 May
0 wk
10 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
21 Mar – 4 Apr
10 Apr
6-8 wk
16 May
22 May
2 wk after
20 Jun
7 wk after
Pinnate dahlia
Dahlia × pinnata
24 Mar – 7 Apr
2 Apr
6-8 wk
19 May
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
31 Mar – 28 Apr
16 Apr
4-8 wk
26 May
3 wk after
26 May
3 wk after
Foxglove
Digitalis purpurea
24 Feb – 10 Mar
8-10 wk
5 May
0 wk
15 May
1 wk after
Busy lizzie
Impatiens walleriana
Fleece
1 – 29 Mar
14 May
8-12 wk
24 May
9 Jul
3 wk after
Creeping zinnia
Sanvitalia procumbens
29 Mar – 12 Apr
4 Apr
6-8 wk
24 May
3 wk after
Hyacinth bean
Dolichos lablab
Season too short
12 – 26 Apr
4-6 wk
24 May
3 wk after
Chinese lantern
Physalis alkekengi
2 – 16 Mar
16 Apr
8-10 wk
11 May
11 Jun
1 wk after
Love in a mist
Nigella damascena
5 May
2 Jul
0 wk
28 Apr
22 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
Fleece
21 Mar – 4 Apr
31 Mar
6-8 wk
16 May
2 wk after
20 Jun
7 wk after
Purple-top vervain
Verbena bonariensis
16 Feb – 16 Mar
16 Apr
8-12 wk
11 May
11 Jun
1 wk after
Cardoon
Cynara cardunculus
1 – 29 Mar
17 Mar
8-12 wk
24 May
3 wk after
Regal-foxtail
Ptilotus nobilis
Greenhouse
21 Feb – 21 Mar
19 Mar
8-12 wk
16 May
2 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
21 Mar – 4 Apr
2 Apr
6-8 wk
16 May
2 wk after
Corn poppy
Papaver rhoeas
5 May
17 Jul
0 wk
28 Apr
7 Jul
1 wk before
Snapdragon
Antirrhinum majus
10 Feb – 10 Mar
12 May
8-12 wk
5 May
7 Jul
0 wk
10 May
27 Jun
1 wk after
Flossflower
Ageratum houstonianum
Fleece
15 – 29 Mar
6 Apr
8-10 wk
24 May
1 Jun
3 wk after
Sweet pea
Lathyrus odoratus
10 – 31 Mar
2 Jun
5-8 wk
5 May
7 Jul
0 wk
Stock
Matthiola incana
10 – 24 Mar
5 Jun
6-8 wk
5 May
17 Jul
0 wk
15 May
7 Jul
1 wk after
Wormwood
Artemisia absinthium
10 – 24 Mar
6 May
6-8 wk
5 May
17 Jun
0 wk
15 May
7 Jun
1 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
4 – 18 Apr
11 Apr
4-6 wk
16 May
2 wk after
Garden pansy
Viola × wittrockiana
24 Feb – 10 Mar
22 May
8-10 wk
5 May
17 Jul
0 wk
10 May
7 Jul
1 wk after
Petunia
Petunia
Fleece
21 Feb – 21 Mar
27 Mar
8-12 wk
16 May
22 May
2 wk after
Sweet Scabious
Scabiosa atropurpurea
16 – 30 Mar
30 Apr
6-8 wk
11 May
11 Jun
1 wk after
10 Jun
5 wk after
Common zinnia
Zinnia elegans
Fleece
4 – 18 Apr
26 Apr
4-6 wk
16 May
24 May
2 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
11 – 25 Apr
3 May
3-5 wk
16 May
24 May
2 wk after
Garden cosmos
Cosmos bipinnatus
12 – 26 Apr
16 Apr
4-6 wk
24 May
3 wk after
10 Jun
5 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
1 – 29 Mar
18 Apr
8-12 wk
24 May
13 Jun
3 wk after
Bee balm
Monarda didyma
10 Feb – 10 Mar
22 Apr
8-12 wk
5 May
17 Jun
0 wk
26 May
7 Jun
3 wk after
Yarrow
Achillea millefolium
10 – 24 Mar
6 Apr
6-8 wk
5 May
18 May
0 wk
15 May
1 wk after
Safflower
Carthamus tinctorius
5 May
17 Jun
0 wk
28 Apr
7 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
10 – 24 Mar
26 May
6-8 wk
5 May
7 Jul
0 wk
27 Mar
27 Jun
6 wk before
Bishop's flower
Ammi majus
24 Mar – 7 Apr
9 Jun
4-6 wk
5 May
7 Jul
0 wk
15 May
27 Jun
1 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
21 Feb – 7 Mar
26 Feb
10-12 wk
16 May
2 wk after
Sunflower
Helianthus annuus
26 Apr – 3 May
3 Jun
3-4 wk
24 May
24 Jun
3 wk after
26 May
14 Jun
3 wk after
China aster
Callistephus chinensis
29 Mar – 12 Apr
23 May
6-8 wk
24 May
4 Jul
3 wk after
10 Jun
24 Jun
5 wk after
Annual phlox
Phlox drummondii
21 Mar – 4 Apr
4 Apr
6-8 wk
16 May
16 May
2 wk after
10 Jun
5 wk after
Hollyhock
Alcea rosea
10 – 24 Mar
6-8 wk
5 May
0 wk
15 May
1 wk after
Alpine delphinium
Delphinium elatum
10 Feb – 10 Mar
22 Apr
8-12 wk
5 May
17 Jun
0 wk
26 May
7 Jun
3 wk after
African marigold
Tagetes erecta
29 Mar – 12 Apr
4 Apr
6-8 wk
24 May
3 wk after
Black-eyed Susan
Rudbeckia hirta
16 – 30 Mar
13 May
6-8 wk
11 May
24 Jun
1 wk after
10 Jun
14 Jun
5 wk after
Wood sage
Salvia nemorosa
24 Feb – 10 Mar
12 Apr
8-10 wk
5 May
7 Jun
0 wk
26 May
28 May
3 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
7 Mar – 4 Apr
12 Apr
6-10 wk
16 May
24 May
2 wk after
California goldenpoppy
Eschscholzia californica
5 May
17 Jul
0 wk
28 Apr
7 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
15 – 29 Mar
28 Apr
8-10 wk
24 May
23 Jun
3 wk after
Water forget-me-not
Myosotis scorpioides
10 – 24 Mar
6 May
6-8 wk
5 May
17 Jun
0 wk
15 May
7 Jun
1 wk after