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Method
Rel. frost
Last spring frost (0°C) 24 May Frost 3 of 4 years · 20 years of data
Frost-free season 102 days 24 May – 3 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)
5 – 19 Apr
14 Jun
5-7 wk
24 May
19 Jul
0 wk
25 May
9 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
12 – 26 Apr
26 Jun
4-6 wk
24 May
24 Jul
0 wk
25 May
14 Jul
0 wk
Chili pepper
Capsicum annuum
Greenhouse
7 Mar – 4 Apr
28 Mar
8-12 wk
30 May
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
5 – 19 Apr
9 Jun
5-7 wk
24 May
14 Jul
0 wk
24 May
4 Jul
0 wk
Garden cucumber
Cucumis sativus
Fleece
9 – 16 May
22 May
3-4 wk
6 Jun
12 Jun
2 wk after
Florence Fennel
Foeniculum vulgare
Fleece
2 – 9 May
23 May
4-5 wk
6 Jun
20 Jun
2 wk after
18 Jun
4 wk after
Butter bean
Phaseolus lunatus
Season too short
4 – 11 Jun
3-4 wk
2 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
1 – 29 Mar
18 Mar
8-12 wk
24 May
0 wk
6 Jun
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
25 May
2 Jun
0 wk
25 May
0 wk
Maize
Zea mays
Fleece
2 – 9 May
12 May
3-4 wk
30 May
2 Jun
1 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
28 Apr – 5 May
19 Jun
3-4 wk
26 May
10 Jul
0 wk
6 Jun
30 Jun
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
24 May
4 Jul
0 wk
24 May
24 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
5 – 19 Apr
9 Jun
5-7 wk
24 May
14 Jul
0 wk
24 May
4 Jul
0 wk
Potato
Solanum tuberosum
22 Apr – 6 May
17 May
4-6 wk
3 Jun
14 Jun
1 wk after
3 Jun
4 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
5 – 19 Apr
19 Jun
5-7 wk
24 May
24 Jul
0 wk
25 May
14 Jul
0 wk
Pumpkin
Cucurbita pepo
Fleece
9 – 16 May
4 Jun
3-4 wk
6 Jun
25 Jun
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
28 Apr – 5 May
24 May
3-4 wk
26 May
14 Jun
0 wk
6 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
12 – 26 Apr
21 Jun
4-6 wk
24 May
19 Jul
0 wk
Lettuce
Lactuca sativa
26 Apr – 3 May
8 Jul
3-4 wk
24 May
29 Jul
0 wk
25 May
19 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
12 – 26 Apr
21 Jun
4-6 wk
24 May
19 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
26 Apr – 10 May
26 May
2-4 wk
24 May
9 Jun
0 wk
24 May
30 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
25 May
2 Jun
0 wk
25 May
0 wk
Spinach
Spinacia oleracea
26 Apr – 3 May
23 Jul
3-4 wk
24 May
13 Aug
0 wk
21 May
3 Aug
0 wk
Sweet potato
Ipomoea batatas
18 Jun – 2 Jul
4-6 wk
30 Jul
10 wk after
Garden tomato
Solanum lycopersicum
Fleece
4 – 18 Apr
21 Apr
6-8 wk
30 May
2 Jun
1 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
9 – 23 May
29 May
2-4 wk
6 Jun
12 Jun
2 wk after
6 Jul
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
12 – 26 Apr
21 Jun
4-6 wk
24 May
19 Jul
0 wk
Garden pea
Pisum sativum
26 Apr – 3 May
23 Jun
3-4 wk
24 May
14 Jul
0 wk
25 May
4 Jul
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
25 Apr – 9 May
13 May
4-6 wk
6 Jun
10 Jun
2 wk after
Lemon balm
Melissa officinalis
15 – 29 Mar
19 May
8-10 wk
24 May
14 Jul
0 wk
18 Jun
4 Jul
4 wk after
Dill
Anethum graveolens
25 May
10 Jul
0 wk
Wild chives
Allium schoenoprasum
29 Mar – 12 Apr
2 Jun
6-8 wk
24 May
14 Jul
0 wk
25 May
4 Jul
0 wk
Spearmint
Mentha spicata
1 – 29 Mar
19 May
8-12 wk
24 May
14 Jul
0 wk
18 Jun
4 Jul
4 wk after
Coriander
Coriandrum sativum
24 May
30 Jul
0 wk
6 Jun
20 Jul
2 wk after
Garden sage
Salvia officinalis
17 – 31 Mar
4 May
8-10 wk
26 May
29 Jun
0 wk
Common thyme
Thymus vulgaris
15 – 29 Mar
9 May
8-10 wk
24 May
4 Jul
0 wk
Oregano
Origanum vulgare
29 Mar – 12 Apr
23 May
6-8 wk
24 May
4 Jul
0 wk
18 Jun
24 Jun
4 wk after
Parsley
Petroselinum crispum
29 Mar – 12 Apr
23 May
6-8 wk
24 May
4 Jul
0 wk
25 May
24 Jun
0 wk
Rosemary
Salvia rosmarinus
17 Feb – 17 Mar
14 Mar
10-14 wk
26 May
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
9 – 16 May
20 May
3-4 wk
6 Jun
10 Jun
2 wk after
Cornflower
Centaurea cyanus
24 May
14 Jul
0 wk
25 May
4 Jul
0 wk
Statice
Limonium sinuatum
28 Mar – 11 Apr
18 Apr
8-10 wk
6 Jun
13 Jun
2 wk after
Sweet William
Dianthus barbatus
29 Mar – 12 Apr
6-8 wk
24 May
0 wk
3 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
11 – 25 Apr
2 May
6-8 wk
6 Jun
13 Jun
2 wk after
30 Jul
10 wk after
Pinnate dahlia
Dahlia × pinnata
9 – 23 Apr
10 May
6-8 wk
4 Jun
21 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
23 Apr – 21 May
24 May
4-8 wk
18 Jun
21 Jun
4 wk after
18 Jun
4 wk after
Foxglove
Digitalis purpurea
15 – 29 Mar
8-10 wk
24 May
0 wk
6 Jun
2 wk after
Busy lizzie
Impatiens walleriana
2 – 30 Apr
31 May
8-12 wk
25 Jun
26 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
11 – 25 Apr
12 May
6-8 wk
6 Jun
23 Jun
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
25 Apr – 9 May
4-6 wk
6 Jun
2 wk after
Chinese lantern
Physalis alkekengi
17 – 31 Mar
5 Apr
8-10 wk
26 May
31 May
0 wk
Love in a mist
Nigella damascena
24 May
29 Jun
0 wk
25 May
19 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Fleece
4 – 18 Apr
1 May
6-8 wk
30 May
12 Jun
1 wk after
13 Jul
7 wk after
Purple-top vervain
Verbena bonariensis
3 – 31 Mar
5 Apr
8-12 wk
26 May
31 May
0 wk
Cardoon
Cynara cardunculus
Greenhouse
1 – 29 Mar
20 Mar
8-12 wk
24 May
0 wk
Regal-foxtail
Ptilotus nobilis
Greenhouse
7 Mar – 4 Apr
26 Apr
8-12 wk
30 May
21 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
4 – 18 Apr
10 May
6-8 wk
30 May
21 Jun
1 wk after
Corn poppy
Papaver rhoeas
24 May
14 Jul
0 wk
25 May
4 Jul
0 wk
Snapdragon
Antirrhinum majus
1 – 29 Mar
9 May
8-12 wk
24 May
4 Jul
0 wk
3 Jun
24 Jun
1 wk after
Flossflower
Ageratum houstonianum
16 – 30 Apr
28 Apr
8-10 wk
25 Jun
5 wk after
Sweet pea
Lathyrus odoratus
29 Mar – 19 Apr
30 May
5-8 wk
24 May
4 Jul
0 wk
Stock
Matthiola incana
29 Mar – 12 Apr
2 Jun
6-8 wk
24 May
14 Jul
0 wk
6 Jun
4 Jul
2 wk after
Wormwood
Artemisia absinthium
29 Mar – 12 Apr
3 May
6-8 wk
24 May
14 Jun
0 wk
6 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
18 Apr – 2 May
19 May
4-6 wk
30 May
16 Jun
1 wk after
Garden pansy
Viola × wittrockiana
15 – 29 Mar
19 May
8-10 wk
24 May
14 Jul
0 wk
3 Jun
4 Jul
1 wk after
Petunia
Petunia
14 Mar – 11 Apr
18 Apr
8-12 wk
6 Jun
13 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
31 Mar – 14 Apr
19 Apr
6-8 wk
26 May
31 May
0 wk
6 Jul
6 wk after
Common zinnia
Zinnia elegans
25 Apr – 9 May
13 May
4-6 wk
6 Jun
10 Jun
2 wk after
Common morning glory
Ipomoea purpurea
Fleece
2 – 16 May
20 May
3-5 wk
6 Jun
10 Jun
2 wk after
Garden cosmos
Cosmos bipinnatus
25 Apr – 9 May
24 May
4-6 wk
6 Jun
21 Jun
2 wk after
6 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
2 – 30 Apr
5 May
8-12 wk
25 Jun
30 Jun
5 wk after
Bee balm
Monarda didyma
1 – 29 Mar
19 Apr
8-12 wk
24 May
14 Jun
0 wk
18 Jun
4 wk after
Yarrow
Achillea millefolium
29 Mar – 12 Apr
3 Apr
6-8 wk
24 May
0 wk
6 Jun
2 wk after
Safflower
Carthamus tinctorius
24 May
14 Jun
0 wk
25 May
4 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
29 Mar – 12 Apr
23 May
6-8 wk
24 May
4 Jul
0 wk
8 May
24 Jun
2 wk before
Bishop's flower
Ammi majus
12 – 26 Apr
6 Jun
4-6 wk
24 May
4 Jul
0 wk
6 Jun
24 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
7 – 21 Mar
28 Mar
10-12 wk
30 May
6 Jun
1 wk after
Sunflower
Helianthus annuus
9 – 16 May
22 May
3-4 wk
6 Jun
12 Jun
2 wk after
18 Jun
4 wk after
China aster
Callistephus chinensis
11 – 25 Apr
11 May
6-8 wk
6 Jun
22 Jun
2 wk after
6 Jul
6 wk after
Annual phlox
Phlox drummondii
4 – 18 Apr
12 May
6-8 wk
30 May
23 Jun
1 wk after
6 Jul
6 wk after
Hollyhock
Alcea rosea
29 Mar – 12 Apr
6-8 wk
24 May
0 wk
6 Jun
2 wk after
Alpine delphinium
Delphinium elatum
1 – 29 Mar
19 Apr
8-12 wk
24 May
14 Jun
0 wk
18 Jun
4 wk after
African marigold
Tagetes erecta
11 – 25 Apr
12 May
6-8 wk
6 Jun
23 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
31 Mar – 14 Apr
1 May
6-8 wk
26 May
12 Jun
0 wk
6 Jul
6 wk after
Wood sage
Salvia nemorosa
15 – 29 Mar
9 Apr
8-10 wk
24 May
4 Jun
0 wk
18 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
28 Mar – 25 Apr
29 Apr
6-10 wk
6 Jun
10 Jun
2 wk after
California goldenpoppy
Eschscholzia californica
24 May
4 Jul
0 wk
25 May
24 Jun
0 wk
Painted tongue
Salpiglossis sinuata
Fleece
21 Mar – 4 Apr
25 Apr
8-10 wk
30 May
20 Jun
1 wk after
Water forget-me-not
Myosotis scorpioides
29 Mar – 12 Apr
3 May
6-8 wk
24 May
14 Jun
0 wk
6 Jun
2 wk after