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