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Rel. frost
Last spring frost (0°C) 13 May Frost 3 of 4 years · 20 years of data
Frost-free season 130 days 13 May – 20 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)
25 Mar – 8 Apr
18 Jun
5-7 wk
13 May
23 Jul
0 wk
6 May
13 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
1 – 15 Apr
30 Jun
4-6 wk
13 May
28 Jul
0 wk
6 May
18 Jul
1 wk before
Chili pepper
Capsicum annuum
Greenhouse
28 Feb – 28 Mar
3 Apr
8-12 wk
23 May
29 May
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
25 Mar – 8 Apr
13 Jun
5-7 wk
13 May
18 Jul
0 wk
1 May
8 Jul
2 wk before
Garden cucumber
Cucumis sativus
Fleece
5 – 12 May
28 May
3-4 wk
2 Jun
18 Jun
3 wk after
Florence Fennel
Foeniculum vulgare
14 – 21 May
24 May
4-5 wk
18 Jun
21 Jun
5 wk after
18 Jun
5 wk after
Butter bean
Phaseolus lunatus
Season too short
26 May – 2 Jun
3-4 wk
23 Jun
6 wk after
Onion
Allium cepa (Cepa-gruppen)
18 Feb – 18 Mar
16 Mar
8-12 wk
13 May
0 wk
23 May
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
6 May
31 May
1 wk before
6 May
21 May
1 wk before
Maize
Zea mays
Fleece
25 Apr – 2 May
18 May
3-4 wk
23 May
8 Jun
1 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
20 – 27 Apr
5 Jul
3-4 wk
18 May
26 Jul
1 wk after
23 May
16 Jul
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
13 May
8 Jul
0 wk
1 May
28 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
25 Mar – 8 Apr
13 Jun
5-7 wk
13 May
18 Jul
0 wk
1 May
8 Jul
2 wk before
Potato
Solanum tuberosum
6 – 20 Apr
11 May
4-6 wk
18 May
8 Jun
1 wk after
18 May
29 May
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
25 Mar – 8 Apr
23 Jun
5-7 wk
13 May
28 Jul
0 wk
6 May
18 Jul
1 wk before
Pumpkin
Cucurbita pepo
21 – 28 May
2 Jun
3-4 wk
18 Jun
23 Jun
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
20 – 27 Apr
2 May
3-4 wk
18 May
23 May
1 wk after
23 May
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
1 – 15 Apr
25 Jun
4-6 wk
13 May
23 Jul
0 wk
Lettuce
Lactuca sativa
15 – 22 Apr
12 Jul
3-4 wk
13 May
2 Aug
0 wk
6 May
23 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
1 – 15 Apr
25 Jun
4-6 wk
13 May
23 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
3 – 17 Apr
19 May
2-4 wk
1 May
2 Jun
2 wk before
1 May
23 May
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
6 May
31 May
1 wk before
6 May
21 May
1 wk before
Spinach
Spinacia oleracea
15 – 22 Apr
27 Jul
3-4 wk
13 May
17 Aug
0 wk
25 Apr
7 Aug
3 wk before
Sweet potato
Ipomoea batatas
9 – 23 Jun
4-6 wk
21 Jul
10 wk after
Garden tomato
Solanum lycopersicum
Fleece
28 Mar – 11 Apr
27 Apr
6-8 wk
23 May
8 Jun
1 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
5 – 19 May
4 Jun
2-4 wk
2 Jun
18 Jun
3 wk after
18 Jun
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
1 – 15 Apr
25 Jun
4-6 wk
13 May
23 Jul
0 wk
Garden pea
Pisum sativum
15 – 22 Apr
27 Jun
3-4 wk
13 May
18 Jul
0 wk
6 May
8 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
21 Apr – 5 May
22 May
4-6 wk
2 Jun
19 Jun
3 wk after
Lemon balm
Melissa officinalis
4 – 18 Mar
23 May
8-10 wk
13 May
18 Jul
0 wk
3 Jun
8 Jul
3 wk after
Dill
Anethum graveolens
6 May
26 Jul
1 wk before
Wild chives
Allium schoenoprasum
18 Mar – 1 Apr
6 Jun
6-8 wk
13 May
18 Jul
0 wk
6 May
8 Jul
1 wk before
Spearmint
Mentha spicata
18 Feb – 18 Mar
23 May
8-12 wk
13 May
18 Jul
0 wk
3 Jun
8 Jul
3 wk after
Coriander
Coriandrum sativum
13 May
15 Aug
0 wk
23 May
5 Aug
1 wk after
Garden sage
Salvia officinalis
9 – 23 Mar
8 May
8-10 wk
18 May
3 Jul
1 wk after
Common thyme
Thymus vulgaris
4 – 18 Mar
13 May
8-10 wk
13 May
8 Jul
0 wk
Oregano
Origanum vulgare
18 Mar – 1 Apr
27 May
6-8 wk
13 May
8 Jul
0 wk
3 Jun
28 Jun
3 wk after
Parsley
Petroselinum crispum
18 Mar – 1 Apr
27 May
6-8 wk
13 May
8 Jul
0 wk
6 May
28 Jun
1 wk before
Rosemary
Salvia rosmarinus
9 Feb – 9 Mar
26 Mar
10-14 wk
18 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
Fleece
5 – 12 May
29 May
3-4 wk
2 Jun
19 Jun
3 wk after
Cornflower
Centaurea cyanus
13 May
18 Jul
0 wk
6 May
8 Jul
1 wk before
Statice
Limonium sinuatum
24 Mar – 7 Apr
19 Apr
8-10 wk
2 Jun
14 Jun
3 wk after
Sweet William
Dianthus barbatus
18 Mar – 1 Apr
6-8 wk
13 May
0 wk
18 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
7 – 21 Apr
3 May
6-8 wk
2 Jun
14 Jun
3 wk after
21 Jul
10 wk after
Pinnate dahlia
Dahlia × pinnata
31 Mar – 14 Apr
10 May
6-8 wk
26 May
21 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
8 Apr – 6 May
24 May
4-8 wk
3 Jun
21 Jun
3 wk after
3 Jun
11 Jun
3 wk after
Foxglove
Digitalis purpurea
4 – 18 Mar
8-10 wk
13 May
0 wk
23 May
1 wk after
Busy lizzie
Impatiens walleriana
26 Mar – 23 Apr
9 Jun
8-12 wk
18 Jun
4 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
7 – 21 Apr
13 May
6-8 wk
2 Jun
24 Jun
3 wk after
Hyacinth bean
Dolichos lablab
Season too short
21 Apr – 5 May
22 Apr
4-6 wk
2 Jun
3 wk after
Chinese lantern
Physalis alkekengi
9 – 23 Mar
21 Apr
8-10 wk
18 May
16 Jun
1 wk after
Love in a mist
Nigella damascena
13 May
3 Jul
0 wk
6 May
23 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
Fleece
28 Mar – 11 Apr
4 May
6-8 wk
23 May
15 Jun
1 wk after
28 Jun
7 wk after
Purple-top vervain
Verbena bonariensis
23 Feb – 23 Mar
21 Apr
8-12 wk
18 May
16 Jun
1 wk after
Cardoon
Cynara cardunculus
Fleece
28 Feb – 28 Mar
24 Mar
8-12 wk
23 May
1 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
10 Mar – 7 Apr
14 Apr
8-12 wk
2 Jun
9 Jun
3 wk after
Globe amaranth
Gomphrena globosa
Fleece
7 – 21 Apr
28 Apr
6-8 wk
2 Jun
9 Jun
3 wk after
Corn poppy
Papaver rhoeas
13 May
18 Jul
0 wk
6 May
8 Jul
1 wk before
Snapdragon
Antirrhinum majus
18 Feb – 18 Mar
13 May
8-12 wk
13 May
8 Jul
0 wk
18 May
28 Jun
1 wk after
Flossflower
Ageratum houstonianum
9 – 23 Apr
29 Apr
8-10 wk
18 Jun
24 Jun
5 wk after
Sweet pea
Lathyrus odoratus
18 Mar – 8 Apr
3 Jun
5-8 wk
13 May
8 Jul
0 wk
Stock
Matthiola incana
18 Mar – 1 Apr
6 Jun
6-8 wk
13 May
18 Jul
0 wk
23 May
8 Jul
1 wk after
Wormwood
Artemisia absinthium
18 Mar – 1 Apr
7 May
6-8 wk
13 May
18 Jun
0 wk
23 May
8 Jun
1 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
11 – 25 Apr
19 May
4-6 wk
23 May
16 Jun
1 wk after
Garden pansy
Viola × wittrockiana
4 – 18 Mar
23 May
8-10 wk
13 May
18 Jul
0 wk
18 May
8 Jul
1 wk after
Petunia
Petunia
10 Mar – 7 Apr
19 Apr
8-12 wk
2 Jun
14 Jun
3 wk after
Sweet Scabious
Scabiosa atropurpurea
23 Mar – 6 Apr
5 May
6-8 wk
18 May
16 Jun
1 wk after
18 Jun
5 wk after
Common zinnia
Zinnia elegans
21 Apr – 5 May
22 May
4-6 wk
2 Jun
19 Jun
3 wk after
Common morning glory
Ipomoea purpurea
Fleece
28 Apr – 12 May
29 May
3-5 wk
2 Jun
19 Jun
3 wk after
Garden cosmos
Cosmos bipinnatus
21 Apr – 5 May
24 May
4-6 wk
2 Jun
21 Jun
3 wk after
18 Jun
5 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
26 Mar – 23 Apr
14 May
8-12 wk
18 Jun
9 Jul
5 wk after
Bee balm
Monarda didyma
18 Feb – 18 Mar
23 Apr
8-12 wk
13 May
18 Jun
0 wk
3 Jun
8 Jun
3 wk after
Yarrow
Achillea millefolium
18 Mar – 1 Apr
7 Apr
6-8 wk
13 May
19 May
0 wk
23 May
1 wk after
Safflower
Carthamus tinctorius
13 May
18 Jun
0 wk
6 May
8 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
18 Mar – 1 Apr
27 May
6-8 wk
13 May
8 Jul
0 wk
4 Apr
28 Jun
6 wk before
Bishop's flower
Ammi majus
1 – 15 Apr
10 Jun
4-6 wk
13 May
8 Jul
0 wk
23 May
28 Jun
1 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
28 Feb – 14 Mar
3 Apr
10-12 wk
23 May
12 Jun
1 wk after
Sunflower
Helianthus annuus
5 – 12 May
3 Jun
3-4 wk
2 Jun
24 Jun
3 wk after
3 Jun
14 Jun
3 wk after
China aster
Callistephus chinensis
7 – 21 Apr
23 May
6-8 wk
2 Jun
4 Jul
3 wk after
18 Jun
24 Jun
5 wk after
Annual phlox
Phlox drummondii
28 Mar – 11 Apr
13 May
6-8 wk
23 May
24 Jun
1 wk after
18 Jun
5 wk after
Hollyhock
Alcea rosea
18 Mar – 1 Apr
6-8 wk
13 May
0 wk
23 May
1 wk after
Alpine delphinium
Delphinium elatum
18 Feb – 18 Mar
23 Apr
8-12 wk
13 May
18 Jun
0 wk
3 Jun
8 Jun
3 wk after
African marigold
Tagetes erecta
7 – 21 Apr
13 May
6-8 wk
2 Jun
24 Jun
3 wk after
Black-eyed Susan
Rudbeckia hirta
23 Mar – 6 Apr
13 May
6-8 wk
18 May
24 Jun
1 wk after
18 Jun
5 wk after
Wood sage
Salvia nemorosa
4 – 18 Mar
13 Apr
8-10 wk
13 May
8 Jun
0 wk
3 Jun
3 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
24 Mar – 21 Apr
8 May
6-10 wk
2 Jun
19 Jun
3 wk after
California goldenpoppy
Eschscholzia californica
13 May
18 Jul
0 wk
6 May
8 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
24 Mar – 7 Apr
26 Apr
8-10 wk
2 Jun
21 Jun
3 wk after
Water forget-me-not
Myosotis scorpioides
18 Mar – 1 Apr
7 May
6-8 wk
13 May
18 Jun
0 wk
23 May
8 Jun
1 wk after