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Method
Rel. frost
Last spring frost (0°C) 30 May Frost 1 of 4 years · 20 years of data
Frost-free season 105 days 30 May – 12 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)
11 – 25 Apr
11 Jun
5-7 wk
30 May
16 Jul
0 wk
31 May
6 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
18 Apr – 2 May
23 Jun
4-6 wk
30 May
21 Jul
0 wk
31 May
11 Jul
0 wk
Chili pepper
Capsicum annuum
Greenhouse
13 Mar – 10 Apr
31 Mar
8-12 wk
5 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
11 – 25 Apr
6 Jun
5-7 wk
30 May
11 Jul
0 wk
30 May
1 Jul
0 wk
Garden cucumber
Cucumis sativus
Fleece
15 – 22 May
25 May
3-4 wk
12 Jun
15 Jun
2 wk after
Florence Fennel
Foeniculum vulgare
27 May – 3 Jun
4-5 wk
1 Jul
5 wk after
12 Jul
6 wk after
Butter bean
Phaseolus lunatus
Season too short
10 – 17 Jun
3-4 wk
8 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Fleece
7 Mar – 4 Apr
27 Mar
8-12 wk
30 May
0 wk
5 Jun
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
31 May
31 May
0 wk
31 May
0 wk
Maize
Zea mays
Fleece
8 – 15 May
15 May
3-4 wk
5 Jun
5 Jun
1 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
4 – 11 May
30 Jun
3-4 wk
1 Jun
21 Jul
0 wk
12 Jun
11 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
30 May
1 Jul
0 wk
30 May
21 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
11 – 25 Apr
6 Jun
5-7 wk
30 May
11 Jul
0 wk
30 May
1 Jul
0 wk
Potato
Solanum tuberosum
28 Apr – 12 May
18 May
4-6 wk
9 Jun
15 Jun
1 wk after
9 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
11 – 25 Apr
16 Jun
5-7 wk
30 May
21 Jul
0 wk
31 May
11 Jul
0 wk
Pumpkin
Cucurbita pepo
3 – 10 Jun
3-4 wk
1 Jul
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
4 – 11 May
1 Jun
3-4 wk
1 Jun
22 Jun
0 wk
12 Jun
12 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
18 Apr – 2 May
18 Jun
4-6 wk
30 May
16 Jul
0 wk
Lettuce
Lactuca sativa
2 – 9 May
5 Jul
3-4 wk
30 May
26 Jul
0 wk
31 May
16 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
18 Apr – 2 May
18 Jun
4-6 wk
30 May
16 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
2 – 16 May
23 May
2-4 wk
30 May
6 Jun
0 wk
30 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
31 May
31 May
0 wk
31 May
0 wk
Spinach
Spinacia oleracea
2 – 9 May
20 Jul
3-4 wk
30 May
10 Aug
0 wk
27 May
31 Jul
0 wk
Sweet potato
Ipomoea batatas
24 Jun – 8 Jul
4-6 wk
5 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Fleece
10 – 24 Apr
24 Apr
6-8 wk
5 Jun
5 Jun
1 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
15 – 29 May
1 Jun
2-4 wk
12 Jun
15 Jun
2 wk after
12 Jul
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
18 Apr – 2 May
18 Jun
4-6 wk
30 May
16 Jul
0 wk
Garden pea
Pisum sativum
2 – 9 May
20 Jun
3-4 wk
30 May
11 Jul
0 wk
31 May
1 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
1 – 15 May
25 May
4-6 wk
12 Jun
22 Jun
2 wk after
Lemon balm
Melissa officinalis
21 Mar – 4 Apr
16 May
8-10 wk
30 May
11 Jul
0 wk
24 Jun
1 Jul
4 wk after
Dill
Anethum graveolens
31 May
21 Jul
0 wk
Wild chives
Allium schoenoprasum
4 – 18 Apr
30 May
6-8 wk
30 May
11 Jul
0 wk
31 May
1 Jul
0 wk
Spearmint
Mentha spicata
7 Mar – 4 Apr
16 May
8-12 wk
30 May
11 Jul
0 wk
24 Jun
1 Jul
4 wk after
Coriander
Coriandrum sativum
30 May
10 Aug
0 wk
12 Jun
31 Jul
2 wk after
Garden sage
Salvia officinalis
23 Mar – 6 Apr
1 May
8-10 wk
1 Jun
26 Jun
0 wk
Common thyme
Thymus vulgaris
21 Mar – 4 Apr
6 May
8-10 wk
30 May
1 Jul
0 wk
Oregano
Origanum vulgare
4 – 18 Apr
20 May
6-8 wk
30 May
1 Jul
0 wk
24 Jun
4 wk after
Parsley
Petroselinum crispum
4 – 18 Apr
20 May
6-8 wk
30 May
1 Jul
0 wk
31 May
21 Jun
0 wk
Rosemary
Salvia rosmarinus
23 Feb – 23 Mar
26 Mar
10-14 wk
1 Jun
4 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
15 – 22 May
1 Jun
3-4 wk
12 Jun
22 Jun
2 wk after
Cornflower
Centaurea cyanus
30 May
11 Jul
0 wk
31 May
1 Jul
0 wk
Statice
Limonium sinuatum
3 – 17 Apr
22 Apr
8-10 wk
12 Jun
17 Jun
2 wk after
Sweet William
Dianthus barbatus
4 – 18 Apr
6-8 wk
30 May
0 wk
9 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
17 Apr – 1 May
6 May
6-8 wk
12 Jun
17 Jun
2 wk after
5 Aug
10 wk after
Pinnate dahlia
Dahlia × pinnata
15 – 29 Apr
8 May
6-8 wk
10 Jun
19 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Fleece
17 Apr – 15 May
3 Jun
4-8 wk
12 Jun
1 Jul
2 wk after
12 Jun
21 Jun
2 wk after
Foxglove
Digitalis purpurea
21 Mar – 4 Apr
8-10 wk
30 May
0 wk
12 Jun
2 wk after
Busy lizzie
Impatiens walleriana
8 Apr – 6 May
12 Jun
8-12 wk
1 Jul
7 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
17 Apr – 1 May
16 May
6-8 wk
12 Jun
27 Jun
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
1 – 15 May
4-6 wk
12 Jun
2 wk after
Chinese lantern
Physalis alkekengi
23 Mar – 6 Apr
16 Apr
8-10 wk
1 Jun
11 Jun
0 wk
Love in a mist
Nigella damascena
30 May
26 Jun
0 wk
31 May
16 Jun
0 wk
Strawflower
Xerochrysum bracteatum
17 Apr – 1 May
26 Apr
6-8 wk
12 Jun
2 wk after
5 Aug
10 wk after
Purple-top vervain
Verbena bonariensis
9 Mar – 6 Apr
16 Apr
8-12 wk
1 Jun
11 Jun
0 wk
Cardoon
Cynara cardunculus
Fleece
13 Mar – 10 Apr
17 Mar
8-12 wk
5 Jun
1 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
20 Mar – 17 Apr
17 Apr
8-12 wk
12 Jun
12 Jun
2 wk after
Globe amaranth
Gomphrena globosa
Fleece
17 Apr – 1 May
1 May
6-8 wk
12 Jun
12 Jun
2 wk after
Corn poppy
Papaver rhoeas
30 May
11 Jul
0 wk
31 May
1 Jul
0 wk
Snapdragon
Antirrhinum majus
7 Mar – 4 Apr
6 May
8-12 wk
30 May
1 Jul
0 wk
9 Jun
21 Jun
1 wk after
Flossflower
Ageratum houstonianum
22 Apr – 6 May
2 May
8-10 wk
1 Jul
5 wk after
Sweet pea
Lathyrus odoratus
4 – 25 Apr
27 May
5-8 wk
30 May
1 Jul
0 wk
Stock
Matthiola incana
4 – 18 Apr
30 May
6-8 wk
30 May
11 Jul
0 wk
12 Jun
1 Jul
2 wk after
Wormwood
Artemisia absinthium
4 – 18 Apr
30 Apr
6-8 wk
30 May
11 Jun
0 wk
12 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
1 – 15 May
10 May
4-6 wk
12 Jun
2 wk after
Garden pansy
Viola × wittrockiana
21 Mar – 4 Apr
16 May
8-10 wk
30 May
11 Jul
0 wk
9 Jun
1 Jul
1 wk after
Petunia
Petunia
20 Mar – 17 Apr
22 Apr
8-12 wk
12 Jun
17 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
6 – 20 Apr
30 Apr
6-8 wk
1 Jun
11 Jun
0 wk
12 Jul
6 wk after
Common zinnia
Zinnia elegans
1 – 15 May
25 May
4-6 wk
12 Jun
22 Jun
2 wk after
Common morning glory
Ipomoea purpurea
Fleece
8 – 22 May
1 Jun
3-5 wk
12 Jun
22 Jun
2 wk after
Garden cosmos
Cosmos bipinnatus
1 – 15 May
22 May
4-6 wk
12 Jun
19 Jun
2 wk after
12 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
8 Apr – 6 May
17 May
8-12 wk
1 Jul
12 Jul
5 wk after
Bee balm
Monarda didyma
7 Mar – 4 Apr
16 Apr
8-12 wk
30 May
11 Jun
0 wk
24 Jun
4 wk after
Yarrow
Achillea millefolium
4 – 18 Apr
6-8 wk
30 May
0 wk
12 Jun
2 wk after
Safflower
Carthamus tinctorius
30 May
11 Jun
0 wk
31 May
1 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
4 – 18 Apr
20 May
6-8 wk
30 May
1 Jul
0 wk
14 May
21 Jun
2 wk before
Bishop's flower
Ammi majus
18 Apr – 2 May
3 Jun
4-6 wk
30 May
1 Jul
0 wk
12 Jun
21 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Fleece
20 Mar – 3 Apr
21 Mar
10-12 wk
12 Jun
2 wk after
Sunflower
Helianthus annuus
15 – 22 May
3 Jun
3-4 wk
12 Jun
24 Jun
2 wk after
24 Jun
4 wk after
China aster
Callistephus chinensis
17 Apr – 1 May
23 May
6-8 wk
12 Jun
4 Jul
2 wk after
12 Jul
6 wk after
Annual phlox
Phlox drummondii
10 – 24 Apr
16 May
6-8 wk
5 Jun
27 Jun
1 wk after
12 Jul
6 wk after
Hollyhock
Alcea rosea
4 – 18 Apr
6-8 wk
30 May
0 wk
12 Jun
2 wk after
Alpine delphinium
Delphinium elatum
7 Mar – 4 Apr
16 Apr
8-12 wk
30 May
11 Jun
0 wk
24 Jun
4 wk after
African marigold
Tagetes erecta
17 Apr – 1 May
16 May
6-8 wk
12 Jun
27 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
6 – 20 Apr
13 May
6-8 wk
1 Jun
24 Jun
0 wk
12 Jul
6 wk after
Wood sage
Salvia nemorosa
21 Mar – 4 Apr
6 Apr
8-10 wk
30 May
1 Jun
0 wk
24 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
3 Apr – 1 May
11 May
6-10 wk
12 Jun
22 Jun
2 wk after
California goldenpoppy
Eschscholzia californica
30 May
11 Jul
0 wk
31 May
1 Jul
0 wk
Painted tongue
Salpiglossis sinuata
3 – 17 Apr
19 Apr
8-10 wk
12 Jun
14 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
4 – 18 Apr
30 Apr
6-8 wk
30 May
11 Jun
0 wk
12 Jun
2 wk after