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-1.0°
Slight frost tonight at 04:00. Frost temperatures between tomorrow 02:00 – 06:00. Bring in or cover sensitive plants
-1.1°
Last 24h: Slight frost recorded tonight at 03:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 21 May Frost 3 of 4 years · 20 years of data
Frost-free season 113 days 21 May – 11 Sep
Probability that frost is over

25% = 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)
4 – 18 May
13 Jun
5-7 wk
22 Jun
18 Jul
5 wk after
22 May
8 Jul
Vid frost
Broccoli
Brassica oleracea (Italica-gruppen)
28 Apr – 12 May
25 Jun
4-6 wk
9 Jun
23 Jul
3 wk after
22 May
13 Jul
Vid frost
Chili pepper
Capsicum annuum
Season too short
1 – 29 Apr
8-12 wk
24 Jun
5 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
20 Mar – 3 Apr
8 Jun
5-7 wk
8 May
13 Jul
2 wk before
21 May
3 Jul
Vid frost
Garden cucumber
Cucumis sativus
Greenhouse
27 May – 3 Jun
3-4 wk
24 Jun
5 wk after
Florence Fennel
Foeniculum vulgare
Fleece
27 May – 3 Jun
3 Jun
4-5 wk
1 Jul
1 Jul
6 wk after
15 Jun
21 Jun
4 wk after
Butter bean
Phaseolus lunatus
Season too short
10 – 17 Jun
3-4 wk
8 Jul
7 wk after
Onion
Allium cepa (Cepa-gruppen)
26 Feb – 26 Mar
16 Mar
8-12 wk
21 May
Vid frost
3 Jun
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
22 May
31 May
Vid frost
22 May
Vid frost
Maize
Zea mays
Greenhouse
20 – 27 May
3-4 wk
17 Jun
4 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
25 May – 1 Jun
30 Jun
3-4 wk
22 Jun
21 Jul
5 wk after
3 Jun
11 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
21 May
23 Jun
Vid frost
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
20 Mar – 3 Apr
8 Jun
5-7 wk
8 May
13 Jul
2 wk before
21 May
3 Jul
Vid frost
Potato
Solanum tuberosum
19 Apr – 3 May
12 May
4-6 wk
31 May
9 Jun
1 wk after
31 May
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
20 Mar – 3 Apr
18 Jun
5-7 wk
8 May
23 Jul
2 wk before
22 May
13 Jul
Vid frost
Pumpkin
Cucurbita pepo
Fleece
3 – 10 Jun
3-4 wk
1 Jul
6 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
25 May – 1 Jun
3-4 wk
22 Jun
5 wk after
3 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
28 Apr – 12 May
20 Jun
4-6 wk
9 Jun
18 Jul
3 wk after
Lettuce
Lactuca sativa
18 – 25 Apr
7 Jul
3-4 wk
16 May
28 Jul
1 wk before
22 May
18 Jul
Vid frost
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
4 – 18 Apr
20 Jun
4-6 wk
16 May
18 Jul
1 wk before
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
23 Apr – 7 May
21 May
2-4 wk
21 May
4 Jun
Vid frost
21 May
25 May
Vid frost
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
22 May
31 May
Vid frost
22 May
Vid frost
Spinach
Spinacia oleracea
13 – 20 Apr
22 Jul
3-4 wk
11 May
12 Aug
1 wk before
18 May
2 Aug
Vid frost
Sweet potato
Ipomoea batatas
15 – 29 Jun
4-6 wk
27 Jul
10 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
22 Apr – 6 May
24 Apr
6-8 wk
17 Jun
4 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
27 May – 10 Jun
1 Jun
2-4 wk
24 Jun
5 wk after
15 Jun
4 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
28 Apr – 12 May
20 Jun
4-6 wk
9 Jun
18 Jul
3 wk after
Garden pea
Pisum sativum
13 – 20 Apr
22 Jun
3-4 wk
11 May
13 Jul
1 wk before
22 May
3 Jul
Vid frost

Herbs

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Basil
Ocimum basilicum
Greenhouse
13 – 27 May
26 May
4-6 wk
24 Jun
5 wk after
Lemon balm
Melissa officinalis
12 – 26 Mar
18 May
8-10 wk
21 May
13 Jul
Vid frost
15 Jun
3 Jul
4 wk after
Dill
Anethum graveolens
22 May
21 Jul
Vid frost
Wild chives
Allium schoenoprasum
13 – 27 Mar
1 Jun
6-8 wk
8 May
13 Jul
2 wk before
22 May
3 Jul
Vid frost
Spearmint
Mentha spicata
16 Feb – 16 Mar
18 May
8-12 wk
11 May
13 Jul
1 wk before
15 Jun
3 Jul
4 wk after
Coriander
Coriandrum sativum
3 Jun
31 Jul
2 wk after
Garden sage
Salvia officinalis
13 – 27 Apr
3 May
8-10 wk
22 Jun
28 Jun
5 wk after
Common thyme
Thymus vulgaris
31 Mar – 14 Apr
8 May
8-10 wk
9 Jun
3 Jul
3 wk after
Oregano
Origanum vulgare
31 Mar – 14 Apr
22 May
6-8 wk
26 May
3 Jul
1 wk after
15 Jun
23 Jun
4 wk after
Parsley
Petroselinum crispum
16 – 30 Mar
22 May
6-8 wk
11 May
3 Jul
1 wk before
22 May
23 Jun
Vid frost
Rosemary
Salvia rosmarinus
Fleece
3 – 31 Mar
4 Apr
10-14 wk
9 Jun
13 Jun
3 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
27 May – 3 Jun
2 Jun
3-4 wk
24 Jun
5 wk after
Cornflower
Centaurea cyanus
11 May
13 Jul
1 wk before
22 May
3 Jul
Vid frost
Statice
Limonium sinuatum
Fleece
15 – 29 Apr
26 Apr
8-10 wk
24 Jun
5 wk after
Sweet William
Dianthus barbatus
16 – 30 Mar
6-8 wk
11 May
1 wk before
31 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
29 Apr – 13 May
10 May
6-8 wk
24 Jun
5 wk after
10 Jul
7 wk after
Pinnate dahlia
Dahlia × pinnata
3 – 17 May
6-8 wk
28 Jun
5 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
20 Apr – 18 May
16 May
4-8 wk
15 Jun
4 wk after
15 Jun
4 wk after
Foxglove
Digitalis purpurea
2 – 16 Mar
8-10 wk
11 May
1 wk before
3 Jun
2 wk after
Busy lizzie
Impatiens walleriana
14 Apr – 12 May
26 May
8-12 wk
7 Jul
21 Jul
7 wk after
Creeping zinnia
Sanvitalia procumbens
6 – 20 May
6-8 wk
1 Jul
6 wk after
Hyacinth bean
Dolichos lablab
Season too short
20 May – 3 Jun
4-6 wk
1 Jul
6 wk after
Chinese lantern
Physalis alkekengi
13 – 27 Apr
16 Apr
8-10 wk
22 Jun
5 wk after
Love in a mist
Nigella damascena
22 May
18 Jun
Vid frost
Strawflower
Xerochrysum bracteatum
Fleece
29 Apr – 13 May
30 Apr
6-8 wk
24 Jun
5 wk after
10 Jul
7 wk after
Purple-top vervain
Verbena bonariensis
30 Mar – 27 Apr
16 Apr
8-12 wk
22 Jun
5 wk after
Cardoon
Cynara cardunculus
Season too short
25 Mar – 22 Apr
8-12 wk
17 Jun
4 wk after
Regal-foxtail
Ptilotus nobilis
Greenhouse
1 – 29 Apr
18 Apr
8-12 wk
24 Jun
5 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
29 Apr – 13 May
2 May
6-8 wk
24 Jun
5 wk after
Corn poppy
Papaver rhoeas
22 May
3 Jul
Vid frost
Snapdragon
Antirrhinum majus
21 Feb – 21 Mar
8 May
8-12 wk
16 May
3 Jul
1 wk before
31 May
23 Jun
1 wk after
Flossflower
Ageratum houstonianum
Fleece
22 Apr – 6 May
6 May
8-10 wk
1 Jul
1 Jul
6 wk after
Sweet pea
Lathyrus odoratus
16 Mar – 6 Apr
29 May
5-8 wk
11 May
3 Jul
1 wk before
Stock
Matthiola incana
21 Mar – 4 Apr
1 Jun
6-8 wk
16 May
13 Jul
1 wk before
3 Jun
3 Jul
2 wk after
Wormwood
Artemisia absinthium
16 – 30 Mar
2 May
6-8 wk
11 May
13 Jun
1 wk before
3 Jun
3 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
13 – 27 May
4-6 wk
24 Jun
5 wk after
Garden pansy
Viola × wittrockiana
27 Feb – 13 Mar
18 May
8-10 wk
8 May
13 Jul
2 wk before
31 May
3 Jul
1 wk after
Petunia
Petunia
Fleece
1 – 29 Apr
26 Apr
8-12 wk
24 Jun
5 wk after
Sweet Scabious
Scabiosa atropurpurea
27 Apr – 11 May
30 Apr
6-8 wk
22 Jun
5 wk after
3 Jul
6 wk after
Common zinnia
Zinnia elegans
Fleece
13 – 27 May
26 May
4-6 wk
24 Jun
5 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
20 May – 3 Jun
2 Jun
3-5 wk
24 Jun
5 wk after
Garden cosmos
Cosmos bipinnatus
20 May – 3 Jun
4-6 wk
1 Jul
6 wk after
3 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
14 Apr – 12 May
30 Apr
8-12 wk
7 Jul
7 wk after
Bee balm
Monarda didyma
26 Feb – 26 Mar
18 Apr
8-12 wk
21 May
13 Jun
Vid frost
15 Jun
4 wk after
Yarrow
Achillea millefolium
16 – 30 Mar
2 Apr
6-8 wk
11 May
14 May
1 wk before
3 Jun
2 wk after
Safflower
Carthamus tinctorius
11 May
13 Jun
1 wk before
22 May
3 Jun
Vid frost
Iceland poppy
Papaver nudicaule
13 – 27 Mar
22 May
6-8 wk
8 May
3 Jul
2 wk before
21 May
23 Jun
Vid frost
Bishop's flower
Ammi majus
18 Apr – 2 May
5 Jun
4-6 wk
30 May
3 Jul
1 wk after
3 Jun
23 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
1 – 15 Apr
10-12 wk
24 Jun
5 wk after
Sunflower
Helianthus annuus
3 – 10 Jun
3-4 wk
1 Jul
6 wk after
15 Jun
4 wk after
China aster
Callistephus chinensis
6 – 20 May
17 May
6-8 wk
1 Jul
6 wk after
3 Jul
6 wk after
Annual phlox
Phlox drummondii
29 Apr – 13 May
29 Apr
6-8 wk
24 Jun
5 wk after
3 Jul
6 wk after
Hollyhock
Alcea rosea
16 – 30 Mar
6-8 wk
11 May
1 wk before
3 Jun
2 wk after
Alpine delphinium
Delphinium elatum
17 Mar – 14 Apr
18 Apr
8-12 wk
9 Jun
13 Jun
3 wk after
15 Jun
4 wk after
African marigold
Tagetes erecta
6 – 20 May
6-8 wk
1 Jul
6 wk after
Black-eyed Susan
Rudbeckia hirta
27 Apr – 11 May
7 May
6-8 wk
22 Jun
5 wk after
3 Jul
6 wk after
Wood sage
Salvia nemorosa
17 – 31 Mar
8 Apr
8-10 wk
26 May
3 Jun
1 wk after
15 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
15 Apr – 13 May
12 May
6-10 wk
24 Jun
5 wk after
California goldenpoppy
Eschscholzia californica
22 May
3 Jul
Vid frost
Painted tongue
Salpiglossis sinuata
22 Apr – 6 May
8-10 wk
1 Jul
6 wk after
Water forget-me-not
Myosotis scorpioides
16 – 30 Mar
2 May
6-8 wk
11 May
13 Jun
1 wk before
3 Jun
3 Jun
2 wk after