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