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Method
Rel. frost
Last spring frost (0°C) 24 May Frost 1 of 4 years · 20 years of data
Frost-free season 125 days 24 May – 26 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)
5 – 19 Apr
9 Jun
5-7 wk
24 May
14 Jul
0 wk
25 May
4 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
12 – 26 Apr
21 Jun
4-6 wk
24 May
19 Jul
0 wk
25 May
9 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
7 Mar – 4 Apr
20 Mar
8-12 wk
30 May
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
5 – 19 Apr
4 Jun
5-7 wk
24 May
9 Jul
0 wk
24 May
29 Jun
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
2 – 9 May
14 Jun
3-4 wk
30 May
5 Jul
1 wk after
Florence Fennel
Foeniculum vulgare
21 – 28 May
1 Jun
4-5 wk
25 Jun
29 Jun
5 wk after
6 Jul
6 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
15 Mar
8-12 wk
24 May
0 wk
6 Jun
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
Fleece
21 May
9 Jun
0 wk
21 May
30 May
0 wk
Maize
Zea mays
Fleece
2 – 9 May
4 May
3-4 wk
30 May
1 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
28 Apr – 5 May
28 Jun
3-4 wk
26 May
19 Jul
0 wk
6 Jun
9 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
24 May
29 Jun
0 wk
24 May
19 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
5 – 19 Apr
4 Jun
5-7 wk
24 May
9 Jul
0 wk
24 May
29 Jun
0 wk
Potato
Solanum tuberosum
Fleece
13 – 27 Apr
22 May
4-6 wk
25 May
19 Jun
0 wk
25 May
9 Jun
0 wk
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
5 – 19 Apr
14 Jun
5-7 wk
24 May
19 Jul
0 wk
25 May
9 Jul
0 wk
Pumpkin
Cucurbita pepo
Fleece
9 – 16 May
19 Jun
3-4 wk
6 Jun
10 Jul
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
28 Apr – 5 May
13 May
3-4 wk
26 May
3 Jun
0 wk
6 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
12 – 26 Apr
16 Jun
4-6 wk
24 May
14 Jul
0 wk
Lettuce
Lactuca sativa
26 Apr – 3 May
3 Jul
3-4 wk
24 May
24 Jul
0 wk
25 May
14 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
12 – 26 Apr
16 Jun
4-6 wk
24 May
14 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
26 Apr – 10 May
25 May
2-4 wk
24 May
8 Jun
0 wk
24 May
29 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Fleece
21 May
9 Jun
0 wk
21 May
30 May
0 wk
Spinach
Spinacia oleracea
26 Apr – 3 May
18 Jul
3-4 wk
24 May
8 Aug
0 wk
21 May
29 Jul
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
13 Apr
6-8 wk
30 May
1 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
2 – 16 May
21 Jun
2-4 wk
30 May
5 Jul
1 wk after
18 Jun
25 Jun
4 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
12 – 26 Apr
16 Jun
4-6 wk
24 May
14 Jul
0 wk
Garden pea
Pisum sativum
26 Apr – 3 May
18 Jun
3-4 wk
24 May
9 Jul
0 wk
25 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
25 Apr – 9 May
28 May
4-6 wk
6 Jun
25 Jun
2 wk after
Lemon balm
Melissa officinalis
15 – 29 Mar
14 May
8-10 wk
24 May
9 Jul
0 wk
18 Jun
29 Jun
4 wk after
Dill
Anethum graveolens
25 May
19 Jul
0 wk
Wild chives
Allium schoenoprasum
29 Mar – 12 Apr
28 May
6-8 wk
24 May
9 Jul
0 wk
25 May
29 Jun
0 wk
Spearmint
Mentha spicata
1 – 29 Mar
14 May
8-12 wk
24 May
9 Jul
0 wk
18 Jun
29 Jun
4 wk after
Coriander
Coriandrum sativum
24 May
8 Aug
0 wk
6 Jun
29 Jul
2 wk after
Garden sage
Salvia officinalis
17 – 31 Mar
29 Apr
8-10 wk
26 May
24 Jun
0 wk
Common thyme
Thymus vulgaris
15 – 29 Mar
4 May
8-10 wk
24 May
29 Jun
0 wk
Oregano
Origanum vulgare
29 Mar – 12 Apr
18 May
6-8 wk
24 May
29 Jun
0 wk
18 Jun
19 Jun
4 wk after
Parsley
Petroselinum crispum
29 Mar – 12 Apr
18 May
6-8 wk
24 May
29 Jun
0 wk
25 May
19 Jun
0 wk
Rosemary
Salvia rosmarinus
17 Feb – 17 Mar
31 Mar
10-14 wk
26 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
9 – 16 May
4 Jun
3-4 wk
6 Jun
25 Jun
2 wk after
Cornflower
Centaurea cyanus
24 May
9 Jul
0 wk
25 May
29 Jun
0 wk
Statice
Limonium sinuatum
28 Mar – 11 Apr
22 Apr
8-10 wk
6 Jun
17 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
6 May
6-8 wk
6 Jun
17 Jun
2 wk after
30 Jul
10 wk after
Pinnate dahlia
Dahlia × pinnata
9 – 23 Apr
11 May
6-8 wk
4 Jun
22 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Fleece
11 Apr – 9 May
1 Jun
4-8 wk
6 Jun
29 Jun
2 wk after
6 Jun
19 Jun
2 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
15 Jun
8-12 wk
25 Jun
10 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
11 – 25 Apr
16 May
6-8 wk
6 Jun
27 Jun
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
25 Apr – 9 May
28 Apr
4-6 wk
6 Jun
2 wk after
Chinese lantern
Physalis alkekengi
17 – 31 Mar
14 Apr
8-10 wk
26 May
9 Jun
0 wk
Love in a mist
Nigella damascena
24 May
24 Jun
0 wk
25 May
14 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Fleece
4 – 18 Apr
8 May
6-8 wk
30 May
19 Jun
1 wk after
13 Jul
7 wk after
Purple-top vervain
Verbena bonariensis
3 – 31 Mar
14 Apr
8-12 wk
26 May
9 Jun
0 wk
Cardoon
Cynara cardunculus
Fleece
7 Mar – 4 Apr
15 Mar
8-12 wk
30 May
1 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
14 Mar – 11 Apr
20 Apr
8-12 wk
6 Jun
15 Jun
2 wk after
Globe amaranth
Gomphrena globosa
Fleece
11 – 25 Apr
4 May
6-8 wk
6 Jun
15 Jun
2 wk after
Corn poppy
Papaver rhoeas
24 May
9 Jul
0 wk
25 May
29 Jun
0 wk
Snapdragon
Antirrhinum majus
1 – 29 Mar
4 May
8-12 wk
24 May
29 Jun
0 wk
3 Jun
19 Jun
1 wk after
Flossflower
Ageratum houstonianum
16 – 30 Apr
2 May
8-10 wk
25 Jun
27 Jun
5 wk after
Sweet pea
Lathyrus odoratus
29 Mar – 19 Apr
25 May
5-8 wk
24 May
29 Jun
0 wk
Stock
Matthiola incana
29 Mar – 12 Apr
28 May
6-8 wk
24 May
9 Jul
0 wk
6 Jun
29 Jun
2 wk after
Wormwood
Artemisia absinthium
29 Mar – 12 Apr
28 Apr
6-8 wk
24 May
9 Jun
0 wk
6 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
18 Apr – 2 May
20 May
4-6 wk
30 May
17 Jun
1 wk after
Garden pansy
Viola × wittrockiana
15 – 29 Mar
14 May
8-10 wk
24 May
9 Jul
0 wk
3 Jun
29 Jun
1 wk after
Petunia
Petunia
14 Mar – 11 Apr
22 Apr
8-12 wk
6 Jun
17 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
31 Mar – 14 Apr
28 Apr
6-8 wk
26 May
9 Jun
0 wk
6 Jul
6 wk after
Common zinnia
Zinnia elegans
25 Apr – 9 May
28 May
4-6 wk
6 Jun
25 Jun
2 wk after
Common morning glory
Ipomoea purpurea
Fleece
2 – 16 May
4 Jun
3-5 wk
6 Jun
25 Jun
2 wk after
Garden cosmos
Cosmos bipinnatus
25 Apr – 9 May
25 May
4-6 wk
6 Jun
22 Jun
2 wk after
6 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
2 – 30 Apr
20 May
8-12 wk
25 Jun
15 Jul
5 wk after
Bee balm
Monarda didyma
1 – 29 Mar
14 Apr
8-12 wk
24 May
9 Jun
0 wk
18 Jun
4 wk after
Yarrow
Achillea millefolium
29 Mar – 12 Apr
29 Mar
6-8 wk
24 May
0 wk
6 Jun
2 wk after
Safflower
Carthamus tinctorius
24 May
9 Jun
0 wk
25 May
30 May
0 wk
Iceland poppy
Papaver nudicaule
Season too short
29 Mar – 12 Apr
18 May
6-8 wk
24 May
29 Jun
0 wk
8 May
19 Jun
2 wk before
Bishop's flower
Ammi majus
12 – 26 Apr
1 Jun
4-6 wk
24 May
29 Jun
0 wk
6 Jun
19 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
7 – 21 Mar
31 Mar
10-12 wk
30 May
9 Jun
1 wk after
Sunflower
Helianthus annuus
9 – 16 May
8 Jun
3-4 wk
6 Jun
29 Jun
2 wk after
18 Jun
19 Jun
4 wk after
China aster
Callistephus chinensis
11 – 25 Apr
28 May
6-8 wk
6 Jun
9 Jul
2 wk after
6 Jul
6 wk after
Annual phlox
Phlox drummondii
4 – 18 Apr
16 May
6-8 wk
30 May
27 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
14 Apr
8-12 wk
24 May
9 Jun
0 wk
18 Jun
4 wk after
African marigold
Tagetes erecta
11 – 25 Apr
16 May
6-8 wk
6 Jun
27 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
31 Mar – 14 Apr
18 May
6-8 wk
26 May
29 Jun
0 wk
6 Jul
6 wk after
Wood sage
Salvia nemorosa
15 – 29 Mar
4 Apr
8-10 wk
24 May
30 May
0 wk
18 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
28 Mar – 25 Apr
14 May
6-10 wk
6 Jun
25 Jun
2 wk after
California goldenpoppy
Eschscholzia californica
24 May
9 Jul
0 wk
25 May
29 Jun
0 wk
Painted tongue
Salpiglossis sinuata
28 Mar – 11 Apr
4 May
8-10 wk
6 Jun
29 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
29 Mar – 12 Apr
28 Apr
6-8 wk
24 May
9 Jun
0 wk
6 Jun
2 wk after