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Rel. frost
Last spring frost (0°C) 29 May Frost 1 of 4 years · 20 years of data
Frost-free season 118 days 29 May – 24 Sep
Probability that frost is over

75% = 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)
10 – 24 Apr
9 Jun
5-7 wk
29 May
14 Jul
0 wk
30 May
4 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
17 Apr – 1 May
21 Jun
4-6 wk
29 May
19 Jul
0 wk
30 May
9 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
12 Mar – 9 Apr
8-12 wk
4 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
10 – 24 Apr
4 Jun
5-7 wk
29 May
9 Jul
0 wk
29 May
29 Jun
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
7 – 14 May
11 Jun
3-4 wk
4 Jun
2 Jul
1 wk after
Florence Fennel
Foeniculum vulgare
Fleece
7 – 14 May
1 Jun
4-5 wk
11 Jun
29 Jun
2 wk after
23 Jun
4 wk after
Butter bean
Phaseolus lunatus
Season too short
9 – 16 Jun
3-4 wk
7 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Fleece
6 Mar – 3 Apr
25 Mar
8-12 wk
29 May
0 wk
4 Jun
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
Fleece
26 May
9 Jun
0 wk
26 May
30 May
0 wk
Maize
Zea mays
Greenhouse
1 – 8 May
1 Jun
3-4 wk
29 May
22 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
3 – 10 May
28 Jun
3-4 wk
31 May
19 Jul
0 wk
11 Jun
9 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
29 May
29 Jun
0 wk
29 May
19 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
10 – 24 Apr
4 Jun
5-7 wk
29 May
9 Jul
0 wk
29 May
29 Jun
0 wk
Potato
Solanum tuberosum
Fleece
18 Apr – 2 May
21 May
4-6 wk
30 May
18 Jun
0 wk
30 May
8 Jun
0 wk
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
10 – 24 Apr
14 Jun
5-7 wk
29 May
19 Jul
0 wk
30 May
9 Jul
0 wk
Pumpkin
Cucurbita pepo
Fleece
14 – 21 May
16 Jun
3-4 wk
11 Jun
7 Jul
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
3 – 10 May
13 May
3-4 wk
31 May
3 Jun
0 wk
11 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
17 Apr – 1 May
16 Jun
4-6 wk
29 May
14 Jul
0 wk
Lettuce
Lactuca sativa
1 – 8 May
3 Jul
3-4 wk
29 May
24 Jul
0 wk
30 May
14 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
17 Apr – 1 May
16 Jun
4-6 wk
29 May
14 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
1 – 15 May
24 May
2-4 wk
29 May
7 Jun
0 wk
29 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Fleece
26 May
9 Jun
0 wk
26 May
30 May
0 wk
Spinach
Spinacia oleracea
1 – 8 May
18 Jul
3-4 wk
29 May
8 Aug
0 wk
26 May
29 Jul
0 wk
Sweet potato
Ipomoea batatas
23 Jun – 7 Jul
4-6 wk
4 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
3 – 17 Apr
11 May
6-8 wk
29 May
22 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
7 – 21 May
18 Jun
2-4 wk
4 Jun
2 Jul
1 wk after
23 Jun
4 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
17 Apr – 1 May
16 Jun
4-6 wk
29 May
14 Jul
0 wk
Garden pea
Pisum sativum
1 – 8 May
18 Jun
3-4 wk
29 May
9 Jul
0 wk
30 May
29 Jun
0 wk

Herbs

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Basil
Ocimum basilicum
Fleece
30 Apr – 14 May
25 May
4-6 wk
11 Jun
22 Jun
2 wk after
Lemon balm
Melissa officinalis
20 Mar – 3 Apr
14 May
8-10 wk
29 May
9 Jul
0 wk
23 Jun
29 Jun
4 wk after
Dill
Anethum graveolens
30 May
19 Jul
0 wk
Wild chives
Allium schoenoprasum
3 – 17 Apr
28 May
6-8 wk
29 May
9 Jul
0 wk
30 May
29 Jun
0 wk
Spearmint
Mentha spicata
6 Mar – 3 Apr
14 May
8-12 wk
29 May
9 Jul
0 wk
23 Jun
29 Jun
4 wk after
Coriander
Coriandrum sativum
29 May
8 Aug
0 wk
11 Jun
29 Jul
2 wk after
Garden sage
Salvia officinalis
22 Mar – 5 Apr
29 Apr
8-10 wk
31 May
24 Jun
0 wk
Common thyme
Thymus vulgaris
20 Mar – 3 Apr
4 May
8-10 wk
29 May
29 Jun
0 wk
Oregano
Origanum vulgare
3 – 17 Apr
18 May
6-8 wk
29 May
29 Jun
0 wk
23 Jun
4 wk after
Parsley
Petroselinum crispum
3 – 17 Apr
18 May
6-8 wk
29 May
29 Jun
0 wk
30 May
19 Jun
0 wk
Rosemary
Salvia rosmarinus
22 Feb – 22 Mar
31 Mar
10-14 wk
31 May
9 Jun
0 wk

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
14 – 21 May
1 Jun
3-4 wk
11 Jun
22 Jun
2 wk after
Cornflower
Centaurea cyanus
29 May
9 Jul
0 wk
30 May
29 Jun
0 wk
Statice
Limonium sinuatum
2 – 16 Apr
22 Apr
8-10 wk
11 Jun
17 Jun
2 wk after
Sweet William
Dianthus barbatus
3 – 17 Apr
6-8 wk
29 May
0 wk
8 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
16 – 30 Apr
6 May
6-8 wk
11 Jun
17 Jun
2 wk after
4 Aug
10 wk after
Pinnate dahlia
Dahlia × pinnata
14 – 28 Apr
10 May
6-8 wk
9 Jun
21 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Fleece
16 Apr – 14 May
1 Jun
4-8 wk
11 Jun
29 Jun
2 wk after
11 Jun
19 Jun
2 wk after
Foxglove
Digitalis purpurea
20 Mar – 3 Apr
8-10 wk
29 May
0 wk
11 Jun
2 wk after
Busy lizzie
Impatiens walleriana
7 Apr – 5 May
12 Jun
8-12 wk
30 Jun
7 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
16 – 30 Apr
16 May
6-8 wk
11 Jun
27 Jun
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
30 Apr – 14 May
4-6 wk
11 Jun
2 wk after
Chinese lantern
Physalis alkekengi
22 Mar – 5 Apr
14 Apr
8-10 wk
31 May
9 Jun
0 wk
Love in a mist
Nigella damascena
29 May
24 Jun
0 wk
30 May
14 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Fleece
9 – 23 Apr
8 May
6-8 wk
4 Jun
19 Jun
1 wk after
18 Jul
7 wk after
Purple-top vervain
Verbena bonariensis
8 Mar – 5 Apr
14 Apr
8-12 wk
31 May
9 Jun
0 wk
Cardoon
Cynara cardunculus
Greenhouse
6 Mar – 3 Apr
15 Mar
8-12 wk
29 May
0 wk
Regal-foxtail
Ptilotus nobilis
Fleece
19 Mar – 16 Apr
17 Apr
8-12 wk
11 Jun
12 Jun
2 wk after
Globe amaranth
Gomphrena globosa
Fleece
16 – 30 Apr
1 May
6-8 wk
11 Jun
12 Jun
2 wk after
Corn poppy
Papaver rhoeas
29 May
9 Jul
0 wk
30 May
29 Jun
0 wk
Snapdragon
Antirrhinum majus
6 Mar – 3 Apr
4 May
8-12 wk
29 May
29 Jun
0 wk
8 Jun
19 Jun
1 wk after
Flossflower
Ageratum houstonianum
Fleece
2 – 16 Apr
14 May
8-10 wk
11 Jun
9 Jul
2 wk after
Sweet pea
Lathyrus odoratus
3 – 24 Apr
25 May
5-8 wk
29 May
29 Jun
0 wk
Stock
Matthiola incana
3 – 17 Apr
28 May
6-8 wk
29 May
9 Jul
0 wk
11 Jun
29 Jun
2 wk after
Wormwood
Artemisia absinthium
3 – 17 Apr
28 Apr
6-8 wk
29 May
9 Jun
0 wk
11 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
23 Apr – 7 May
19 May
4-6 wk
4 Jun
16 Jun
1 wk after
Garden pansy
Viola × wittrockiana
20 Mar – 3 Apr
14 May
8-10 wk
29 May
9 Jul
0 wk
8 Jun
29 Jun
1 wk after
Petunia
Petunia
19 Mar – 16 Apr
22 Apr
8-12 wk
11 Jun
17 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
5 – 19 Apr
28 Apr
6-8 wk
31 May
9 Jun
0 wk
11 Jul
6 wk after
Common zinnia
Zinnia elegans
30 Apr – 14 May
25 May
4-6 wk
11 Jun
22 Jun
2 wk after
Common morning glory
Ipomoea purpurea
Fleece
7 – 21 May
1 Jun
3-5 wk
11 Jun
22 Jun
2 wk after
Garden cosmos
Cosmos bipinnatus
30 Apr – 14 May
24 May
4-6 wk
11 Jun
21 Jun
2 wk after
11 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
7 Apr – 5 May
17 May
8-12 wk
30 Jun
12 Jul
5 wk after
Bee balm
Monarda didyma
6 Mar – 3 Apr
14 Apr
8-12 wk
29 May
9 Jun
0 wk
23 Jun
4 wk after
Yarrow
Achillea millefolium
3 – 17 Apr
6-8 wk
29 May
0 wk
11 Jun
2 wk after
Safflower
Carthamus tinctorius
29 May
9 Jun
0 wk
30 May
30 May
0 wk
Iceland poppy
Papaver nudicaule
Season too short
3 – 17 Apr
18 May
6-8 wk
29 May
29 Jun
0 wk
13 May
19 Jun
2 wk before
Bishop's flower
Ammi majus
17 Apr – 1 May
1 Jun
4-6 wk
29 May
29 Jun
0 wk
11 Jun
19 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
12 – 26 Mar
31 Mar
10-12 wk
4 Jun
9 Jun
1 wk after
Sunflower
Helianthus annuus
14 – 21 May
8 Jun
3-4 wk
11 Jun
29 Jun
2 wk after
23 Jun
4 wk after
China aster
Callistephus chinensis
16 – 30 Apr
28 May
6-8 wk
11 Jun
9 Jul
2 wk after
11 Jul
6 wk after
Annual phlox
Phlox drummondii
9 – 23 Apr
16 May
6-8 wk
4 Jun
27 Jun
1 wk after
11 Jul
6 wk after
Hollyhock
Alcea rosea
3 – 17 Apr
6-8 wk
29 May
0 wk
11 Jun
2 wk after
Alpine delphinium
Delphinium elatum
6 Mar – 3 Apr
14 Apr
8-12 wk
29 May
9 Jun
0 wk
23 Jun
4 wk after
African marigold
Tagetes erecta
16 – 30 Apr
16 May
6-8 wk
11 Jun
27 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
5 – 19 Apr
18 May
6-8 wk
31 May
29 Jun
0 wk
11 Jul
6 wk after
Wood sage
Salvia nemorosa
20 Mar – 3 Apr
4 Apr
8-10 wk
29 May
30 May
0 wk
23 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
2 – 30 Apr
11 May
6-10 wk
11 Jun
22 Jun
2 wk after
California goldenpoppy
Eschscholzia californica
29 May
9 Jul
0 wk
30 May
29 Jun
0 wk
Painted tongue
Salpiglossis sinuata
2 – 16 Apr
1 May
8-10 wk
11 Jun
26 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
3 – 17 Apr
28 Apr
6-8 wk
29 May
9 Jun
0 wk
11 Jun
2 wk after