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Method
Rel. frost
Last spring frost (0°C) 14 May Frost 3 of 4 years · 20 years of data
Frost-free season 118 days 14 May – 9 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)
26 Mar – 9 Apr
14 Jun
5-7 wk
14 May
19 Jul
0 wk
18 May
9 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
2 – 16 Apr
26 Jun
4-6 wk
14 May
24 Jul
0 wk
18 May
14 Jul
1 wk after
Chili pepper
Capsicum annuum
Season too short
6 Mar – 3 Apr
23 Mar
8-12 wk
29 May
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
26 Mar – 9 Apr
9 Jun
5-7 wk
14 May
14 Jul
0 wk
14 May
4 Jul
0 wk
Garden cucumber
Cucumis sativus
Fleece
13 – 20 May
17 May
3-4 wk
10 Jun
4 wk after
Florence Fennel
Foeniculum vulgare
Fleece
6 – 13 May
25 May
4-5 wk
10 Jun
22 Jun
4 wk after
18 Jun
5 wk after
Butter bean
Phaseolus lunatus
Season too short
3 – 10 Jun
3-4 wk
1 Jul
7 wk after
Onion
Allium cepa (Cepa-gruppen)
19 Feb – 19 Mar
16 Mar
8-12 wk
14 May
0 wk
4 Jun
3 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
18 May
31 May
1 wk after
18 May
21 May
1 wk after
Maize
Zea mays
Fleece
1 – 8 May
7 May
3-4 wk
29 May
2 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
24 Apr – 1 May
21 Jun
3-4 wk
22 May
12 Jul
1 wk after
4 Jun
2 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
14 May
4 Jul
0 wk
14 May
24 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
26 Mar – 9 Apr
9 Jun
5-7 wk
14 May
14 Jul
0 wk
14 May
4 Jul
0 wk
Potato
Solanum tuberosum
18 Apr – 2 May
14 May
4-6 wk
30 May
11 Jun
2 wk after
30 May
1 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
26 Mar – 9 Apr
19 Jun
5-7 wk
14 May
24 Jul
0 wk
18 May
14 Jul
1 wk after
Pumpkin
Cucurbita pepo
Fleece
13 – 20 May
14 Jun
3-4 wk
10 Jun
5 Jul
4 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
24 Apr – 1 May
17 May
3-4 wk
22 May
7 Jun
1 wk after
4 Jun
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
2 – 16 Apr
21 Jun
4-6 wk
14 May
19 Jul
0 wk
Lettuce
Lactuca sativa
16 – 23 Apr
8 Jul
3-4 wk
14 May
29 Jul
0 wk
18 May
19 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
2 – 16 Apr
21 Jun
4-6 wk
14 May
19 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
16 – 30 Apr
22 May
2-4 wk
14 May
5 Jun
0 wk
14 May
26 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
18 May
31 May
1 wk after
18 May
21 May
1 wk after
Spinach
Spinacia oleracea
16 – 23 Apr
23 Jul
3-4 wk
14 May
13 Aug
0 wk
10 May
3 Aug
1 wk before
Sweet potato
Ipomoea batatas
15 – 29 Jun
4-6 wk
27 Jul
11 wk after
Garden tomato
Solanum lycopersicum
Fleece
3 – 17 Apr
16 Apr
6-8 wk
29 May
2 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
13 – 27 May
24 May
2-4 wk
10 Jun
4 wk after
2 Jul
7 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
2 – 16 Apr
21 Jun
4-6 wk
14 May
19 Jul
0 wk
Garden pea
Pisum sativum
16 – 23 Apr
23 Jun
3-4 wk
14 May
14 Jul
0 wk
18 May
4 Jul
1 wk after

Herbs

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