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Method
Rel. frost
Last spring frost (0°C) 29 May Frost 1 of 4 years · 20 years of data
Frost-free season 108 days 29 May – 14 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
12 Jun
5-7 wk
29 May
17 Jul
0 wk
30 May
7 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
17 Apr – 1 May
24 Jun
4-6 wk
29 May
22 Jul
0 wk
30 May
12 Jul
0 wk
Chili pepper
Capsicum annuum
Greenhouse
17 Mar – 14 Apr
13 Apr
8-12 wk
9 Jun
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
10 – 24 Apr
7 Jun
5-7 wk
29 May
12 Jul
0 wk
29 May
2 Jul
0 wk
Garden cucumber
Cucumis sativus
4 – 11 Jun
3-4 wk
2 Jul
5 wk after
Florence Fennel
Foeniculum vulgare
28 May – 4 Jun
4-5 wk
2 Jul
5 wk after
11 Jul
6 wk after
Butter bean
Phaseolus lunatus
Season too short
11 – 18 Jun
3-4 wk
9 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
6 Mar – 3 Apr
28 Mar
8-12 wk
29 May
0 wk
11 Jun
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
30 May
12 Jun
0 wk
30 May
2 Jun
0 wk
Maize
Zea mays
21 – 28 May
3-4 wk
18 Jun
3 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
7 – 14 May
29 Jun
3-4 wk
4 Jun
20 Jul
1 wk after
11 Jun
10 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
29 May
2 Jul
0 wk
29 May
22 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
10 – 24 Apr
7 Jun
5-7 wk
29 May
12 Jul
0 wk
29 May
2 Jul
0 wk
Potato
Solanum tuberosum
27 Apr – 11 May
28 May
4-6 wk
8 Jun
25 Jun
1 wk after
8 Jun
15 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
10 – 24 Apr
17 Jun
5-7 wk
29 May
22 Jul
0 wk
30 May
12 Jul
0 wk
Pumpkin
Cucurbita pepo
4 – 11 Jun
12 Jun
3-4 wk
2 Jul
3 Jul
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
7 – 14 May
11 Jun
3-4 wk
4 Jun
2 Jul
1 wk after
11 Jun
22 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
17 Apr – 1 May
19 Jun
4-6 wk
29 May
17 Jul
0 wk
Lettuce
Lactuca sativa
1 – 8 May
6 Jul
3-4 wk
29 May
27 Jul
0 wk
30 May
17 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
17 Apr – 1 May
19 Jun
4-6 wk
29 May
17 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
1 – 15 May
29 May
2-4 wk
29 May
12 Jun
0 wk
29 May
2 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
30 May
12 Jun
0 wk
30 May
2 Jun
0 wk
Spinach
Spinacia oleracea
1 – 8 May
21 Jul
3-4 wk
29 May
11 Aug
0 wk
26 May
1 Aug
0 wk
Sweet potato
Ipomoea batatas
23 Jun – 7 Jul
4-6 wk
4 Aug
10 wk after
Garden tomato
Solanum lycopersicum
23 Apr – 7 May
6-8 wk
18 Jun
3 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
21 May – 4 Jun
14 Jun
2-4 wk
18 Jun
28 Jun
3 wk after
11 Jul
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
17 Apr – 1 May
19 Jun
4-6 wk
29 May
17 Jul
0 wk
Garden pea
Pisum sativum
1 – 8 May
21 Jun
3-4 wk
29 May
12 Jul
0 wk
30 May
2 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
21 May – 4 Jun
21 May
4-6 wk
2 Jul
5 wk after
Lemon balm
Melissa officinalis
20 Mar – 3 Apr
17 May
8-10 wk
29 May
12 Jul
0 wk
23 Jun
2 Jul
4 wk after
Dill
Anethum graveolens
30 May
20 Jul
0 wk
Wild chives
Allium schoenoprasum
3 – 17 Apr
31 May
6-8 wk
29 May
12 Jul
0 wk
30 May
2 Jul
0 wk
Spearmint
Mentha spicata
6 Mar – 3 Apr
17 May
8-12 wk
29 May
12 Jul
0 wk
23 Jun
2 Jul
4 wk after
Coriander
Coriandrum sativum
29 May
9 Aug
0 wk
11 Jun
30 Jul
2 wk after
Garden sage
Salvia officinalis
26 Mar – 9 Apr
2 May
8-10 wk
4 Jun
27 Jun
1 wk after
Common thyme
Thymus vulgaris
20 Mar – 3 Apr
7 May
8-10 wk
29 May
2 Jul
0 wk
Oregano
Origanum vulgare
3 – 17 Apr
21 May
6-8 wk
29 May
2 Jul
0 wk
23 Jun
4 wk after
Parsley
Petroselinum crispum
3 – 17 Apr
21 May
6-8 wk
29 May
2 Jul
0 wk
30 May
22 Jun
0 wk
Rosemary
Salvia rosmarinus
26 Feb – 26 Mar
24 Mar
10-14 wk
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
4 – 11 Jun
3-4 wk
2 Jul
5 wk after
Cornflower
Centaurea cyanus
29 May
12 Jul
0 wk
30 May
2 Jul
0 wk
Statice
Limonium sinuatum
9 – 23 Apr
24 Apr
8-10 wk
18 Jun
19 Jun
3 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
23 Apr – 7 May
8 May
6-8 wk
18 Jun
19 Jun
3 wk after
4 Aug
10 wk after
Pinnate dahlia
Dahlia × pinnata
18 Apr – 2 May
16 May
6-8 wk
13 Jun
27 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
28 Apr – 26 May
30 May
4-8 wk
23 Jun
27 Jun
4 wk after
23 Jun
4 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
9 Apr – 7 May
16 Jun
8-12 wk
2 Jul
11 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
23 Apr – 7 May
18 May
6-8 wk
18 Jun
29 Jun
3 wk after
Hyacinth bean
Dolichos lablab
Season too short
7 – 21 May
4-6 wk
18 Jun
3 wk after
Chinese lantern
Physalis alkekengi
26 Mar – 9 Apr
15 Apr
8-10 wk
4 Jun
10 Jun
1 wk after
Love in a mist
Nigella damascena
29 May
27 Jun
0 wk
30 May
17 Jun
0 wk
Strawflower
Xerochrysum bracteatum
23 Apr – 7 May
28 Apr
6-8 wk
18 Jun
3 wk after
4 Aug
10 wk after
Purple-top vervain
Verbena bonariensis
12 Mar – 9 Apr
15 Apr
8-12 wk
4 Jun
10 Jun
1 wk after
Cardoon
Cynara cardunculus
Fleece
17 Mar – 14 Apr
18 Mar
8-12 wk
9 Jun
2 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
26 Mar – 23 Apr
21 Apr
8-12 wk
18 Jun
3 wk after
Globe amaranth
Gomphrena globosa
Fleece
23 Apr – 7 May
5 May
6-8 wk
18 Jun
3 wk after
Corn poppy
Papaver rhoeas
29 May
12 Jul
0 wk
30 May
2 Jul
0 wk
Snapdragon
Antirrhinum majus
6 Mar – 3 Apr
7 May
8-12 wk
29 May
2 Jul
0 wk
8 Jun
22 Jun
1 wk after
Flossflower
Ageratum houstonianum
23 Apr – 7 May
4 May
8-10 wk
2 Jul
5 wk after
Sweet pea
Lathyrus odoratus
3 – 24 Apr
28 May
5-8 wk
29 May
2 Jul
0 wk
Stock
Matthiola incana
3 – 17 Apr
31 May
6-8 wk
29 May
12 Jul
0 wk
11 Jun
2 Jul
2 wk after
Wormwood
Artemisia absinthium
3 – 17 Apr
1 May
6-8 wk
29 May
12 Jun
0 wk
11 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
7 – 21 May
14 May
4-6 wk
18 Jun
3 wk after
Garden pansy
Viola × wittrockiana
20 Mar – 3 Apr
17 May
8-10 wk
29 May
12 Jul
0 wk
8 Jun
2 Jul
1 wk after
Petunia
Petunia
26 Mar – 23 Apr
24 Apr
8-12 wk
18 Jun
19 Jun
3 wk after
Sweet Scabious
Scabiosa atropurpurea
9 – 23 Apr
29 Apr
6-8 wk
4 Jun
10 Jun
1 wk after
11 Jul
6 wk after
Common zinnia
Zinnia elegans
7 – 21 May
29 May
4-6 wk
18 Jun
26 Jun
3 wk after
Common morning glory
Ipomoea purpurea
28 May – 11 Jun
28 May
3-5 wk
2 Jul
5 wk after
Garden cosmos
Cosmos bipinnatus
7 – 21 May
30 May
4-6 wk
18 Jun
27 Jun
3 wk after
11 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
21 Apr – 19 May
13 May
8-12 wk
14 Jul
7 wk after
Bee balm
Monarda didyma
6 Mar – 3 Apr
17 Apr
8-12 wk
29 May
12 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
12 Jun
0 wk
30 May
2 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
3 – 17 Apr
21 May
6-8 wk
29 May
2 Jul
0 wk
13 May
22 Jun
2 wk before
Bishop's flower
Ammi majus
17 Apr – 1 May
4 Jun
4-6 wk
29 May
2 Jul
0 wk
11 Jun
22 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Fleece
26 Mar – 9 Apr
29 Mar
10-12 wk
18 Jun
3 wk after
Sunflower
Helianthus annuus
21 – 28 May
1 Jun
3-4 wk
18 Jun
22 Jun
3 wk after
23 Jun
4 wk after
China aster
Callistephus chinensis
23 Apr – 7 May
21 May
6-8 wk
18 Jun
2 Jul
3 wk after
11 Jul
6 wk after
Annual phlox
Phlox drummondii
14 – 28 Apr
18 May
6-8 wk
9 Jun
29 Jun
2 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
17 Apr
8-12 wk
29 May
12 Jun
0 wk
23 Jun
4 wk after
African marigold
Tagetes erecta
23 Apr – 7 May
18 May
6-8 wk
18 Jun
29 Jun
3 wk after
Black-eyed Susan
Rudbeckia hirta
9 – 23 Apr
11 May
6-8 wk
4 Jun
22 Jun
1 wk after
11 Jul
6 wk after
Wood sage
Salvia nemorosa
20 Mar – 3 Apr
7 Apr
8-10 wk
29 May
2 Jun
0 wk
23 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
23 Apr – 21 May
7 May
6-10 wk
2 Jul
5 wk after
California goldenpoppy
Eschscholzia californica
29 May
12 Jul
0 wk
30 May
2 Jul
0 wk
Painted tongue
Salpiglossis sinuata
9 – 23 Apr
22 Apr
8-10 wk
18 Jun
3 wk after
Water forget-me-not
Myosotis scorpioides
3 – 17 Apr
1 May
6-8 wk
29 May
12 Jun
0 wk
11 Jun
2 wk after