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Method
Rel. frost
Last spring frost (0°C) 29 May Frost 1 of 4 years · 20 years of data
Frost-free season 115 days 29 May – 21 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)
10 – 24 Apr
10 Jun
5-7 wk
29 May
15 Jul
0 wk
30 May
5 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
17 Apr – 1 May
22 Jun
4-6 wk
29 May
20 Jul
0 wk
30 May
10 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
17 Mar – 14 Apr
24 Mar
8-12 wk
9 Jun
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
10 – 24 Apr
5 Jun
5-7 wk
29 May
10 Jul
0 wk
29 May
30 Jun
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
12 – 19 May
11 Jun
3-4 wk
9 Jun
2 Jul
2 wk after
Florence Fennel
Foeniculum vulgare
Fleece
14 – 21 May
2 Jun
4-5 wk
18 Jun
30 Jun
3 wk after
23 Jun
4 wk after
Butter bean
Phaseolus lunatus
Season too short
11 – 18 Jun
3-4 wk
9 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Greenhouse
6 Mar – 3 Apr
26 Mar
8-12 wk
29 May
0 wk
29 May
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
30 May
0 wk
30 May
0 wk
Maize
Zea mays
Fleece
12 – 19 May
3-4 wk
9 Jun
2 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
7 – 14 May
29 Jun
3-4 wk
4 Jun
20 Jul
1 wk after
11 Jun
10 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
29 May
30 Jun
0 wk
29 May
20 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
10 – 24 Apr
5 Jun
5-7 wk
29 May
10 Jul
0 wk
29 May
30 Jun
0 wk
Potato
Solanum tuberosum
27 Apr – 11 May
12 May
4-6 wk
8 Jun
9 Jun
1 wk after
8 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
10 – 24 Apr
15 Jun
5-7 wk
29 May
20 Jul
0 wk
30 May
10 Jul
0 wk
Pumpkin
Cucurbita pepo
Fleece
21 – 28 May
16 Jun
3-4 wk
18 Jun
7 Jul
3 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
7 – 14 May
14 May
3-4 wk
4 Jun
4 Jun
1 wk after
11 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
17 Apr – 1 May
17 Jun
4-6 wk
29 May
15 Jul
0 wk
Lettuce
Lactuca sativa
1 – 8 May
4 Jul
3-4 wk
29 May
25 Jul
0 wk
30 May
15 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
17 Apr – 1 May
17 Jun
4-6 wk
29 May
15 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
1 – 15 May
15 May
2-4 wk
29 May
29 May
0 wk
29 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
30 May
0 wk
30 May
0 wk
Spinach
Spinacia oleracea
1 – 8 May
19 Jul
3-4 wk
29 May
9 Aug
0 wk
26 May
30 Jul
0 wk
Sweet potato
Ipomoea batatas
23 Jun – 7 Jul
4-6 wk
4 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Fleece
14 – 28 Apr
17 Apr
6-8 wk
9 Jun
2 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
12 – 26 May
18 Jun
2-4 wk
9 Jun
2 Jul
2 wk after
23 Jun
4 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
17 Apr – 1 May
17 Jun
4-6 wk
29 May
15 Jul
0 wk
Garden pea
Pisum sativum
1 – 8 May
19 Jun
3-4 wk
29 May
10 Jul
0 wk
30 May
30 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
7 – 21 May
25 May
4-6 wk
18 Jun
22 Jun
3 wk after
Lemon balm
Melissa officinalis
20 Mar – 3 Apr
15 May
8-10 wk
29 May
10 Jul
0 wk
23 Jun
30 Jun
4 wk after
Dill
Anethum graveolens
30 May
20 Jul
0 wk
Wild chives
Allium schoenoprasum
3 – 17 Apr
29 May
6-8 wk
29 May
10 Jul
0 wk
30 May
30 Jun
0 wk
Spearmint
Mentha spicata
6 Mar – 3 Apr
15 May
8-12 wk
29 May
10 Jul
0 wk
23 Jun
30 Jun
4 wk after
Coriander
Coriandrum sativum
29 May
9 Aug
0 wk
11 Jun
30 Jul
2 wk after
Garden sage
Salvia officinalis
26 Mar – 9 Apr
30 Apr
8-10 wk
4 Jun
25 Jun
1 wk after
Common thyme
Thymus vulgaris
20 Mar – 3 Apr
5 May
8-10 wk
29 May
30 Jun
0 wk
Oregano
Origanum vulgare
3 – 17 Apr
19 May
6-8 wk
29 May
30 Jun
0 wk
23 Jun
4 wk after
Parsley
Petroselinum crispum
3 – 17 Apr
19 May
6-8 wk
29 May
30 Jun
0 wk
30 May
20 Jun
0 wk
Rosemary
Salvia rosmarinus
26 Feb – 26 Mar
1 Apr
10-14 wk
4 Jun
10 Jun
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
21 – 28 May
1 Jun
3-4 wk
18 Jun
22 Jun
3 wk after
Cornflower
Centaurea cyanus
29 May
10 Jul
0 wk
30 May
30 Jun
0 wk
Statice
Limonium sinuatum
9 – 23 Apr
20 Apr
8-10 wk
18 Jun
3 wk after
Sweet William
Dianthus barbatus
3 – 17 Apr
6-8 wk
29 May
0 wk
8 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
23 Apr – 7 May
4 May
6-8 wk
18 Jun
3 wk after
4 Aug
10 wk after
Pinnate dahlia
Dahlia × pinnata
18 Apr – 2 May
6 May
6-8 wk
13 Jun
17 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Fleece
16 Apr – 14 May
2 Jun
4-8 wk
11 Jun
30 Jun
2 wk after
11 Jun
20 Jun
2 wk after
Foxglove
Digitalis purpurea
20 Mar – 3 Apr
8-10 wk
29 May
0 wk
11 Jun
2 wk after
Busy lizzie
Impatiens walleriana
9 Apr – 7 May
12 Jun
8-12 wk
2 Jul
7 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
23 Apr – 7 May
14 May
6-8 wk
18 Jun
25 Jun
3 wk after
Hyacinth bean
Dolichos lablab
Season too short
7 – 21 May
4-6 wk
18 Jun
3 wk after
Chinese lantern
Physalis alkekengi
26 Mar – 9 Apr
15 Apr
8-10 wk
4 Jun
10 Jun
1 wk after
Love in a mist
Nigella damascena
29 May
25 Jun
0 wk
30 May
15 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Fleece
14 – 28 Apr
3 May
6-8 wk
9 Jun
14 Jun
2 wk after
18 Jul
7 wk after
Purple-top vervain
Verbena bonariensis
12 Mar – 9 Apr
15 Apr
8-12 wk
4 Jun
10 Jun
1 wk after
Cardoon
Cynara cardunculus
Greenhouse
10 Mar – 7 Apr
16 Mar
8-12 wk
2 Jun
1 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
26 Mar – 23 Apr
17 Apr
8-12 wk
18 Jun
3 wk after
Globe amaranth
Gomphrena globosa
Fleece
23 Apr – 7 May
1 May
6-8 wk
18 Jun
3 wk after
Corn poppy
Papaver rhoeas
29 May
10 Jul
0 wk
30 May
30 Jun
0 wk
Snapdragon
Antirrhinum majus
6 Mar – 3 Apr
5 May
8-12 wk
29 May
30 Jun
0 wk
8 Jun
20 Jun
1 wk after
Flossflower
Ageratum houstonianum
Fleece
9 – 23 Apr
9 May
8-10 wk
18 Jun
4 Jul
3 wk after
Sweet pea
Lathyrus odoratus
3 – 24 Apr
26 May
5-8 wk
29 May
30 Jun
0 wk
Stock
Matthiola incana
3 – 17 Apr
29 May
6-8 wk
29 May
10 Jul
0 wk
11 Jun
30 Jun
2 wk after
Wormwood
Artemisia absinthium
3 – 17 Apr
29 Apr
6-8 wk
29 May
10 Jun
0 wk
11 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
28 Apr – 12 May
15 May
4-6 wk
9 Jun
12 Jun
2 wk after
Garden pansy
Viola × wittrockiana
20 Mar – 3 Apr
15 May
8-10 wk
29 May
10 Jul
0 wk
8 Jun
30 Jun
1 wk after
Petunia
Petunia
26 Mar – 23 Apr
20 Apr
8-12 wk
18 Jun
3 wk after
Sweet Scabious
Scabiosa atropurpurea
9 – 23 Apr
29 Apr
6-8 wk
4 Jun
10 Jun
1 wk after
11 Jul
6 wk after
Common zinnia
Zinnia elegans
7 – 21 May
25 May
4-6 wk
18 Jun
22 Jun
3 wk after
Common morning glory
Ipomoea purpurea
Fleece
14 – 28 May
1 Jun
3-5 wk
18 Jun
22 Jun
3 wk after
Garden cosmos
Cosmos bipinnatus
7 – 21 May
20 May
4-6 wk
18 Jun
3 wk after
11 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
9 Apr – 7 May
17 May
8-12 wk
2 Jul
12 Jul
5 wk after
Bee balm
Monarda didyma
6 Mar – 3 Apr
15 Apr
8-12 wk
29 May
10 Jun
0 wk
23 Jun
4 wk after
Yarrow
Achillea millefolium
3 – 17 Apr
6-8 wk
29 May
0 wk
11 Jun
2 wk after
Safflower
Carthamus tinctorius
29 May
10 Jun
0 wk
30 May
31 May
0 wk
Iceland poppy
Papaver nudicaule
Season too short
3 – 17 Apr
19 May
6-8 wk
29 May
30 Jun
0 wk
13 May
20 Jun
2 wk before
Bishop's flower
Ammi majus
17 Apr – 1 May
2 Jun
4-6 wk
29 May
30 Jun
0 wk
11 Jun
20 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
17 – 31 Mar
1 Apr
10-12 wk
9 Jun
10 Jun
2 wk after
Sunflower
Helianthus annuus
21 – 28 May
9 Jun
3-4 wk
18 Jun
30 Jun
3 wk after
23 Jun
4 wk after
China aster
Callistephus chinensis
23 Apr – 7 May
29 May
6-8 wk
18 Jun
10 Jul
3 wk after
11 Jul
6 wk after
Annual phlox
Phlox drummondii
14 – 28 Apr
14 May
6-8 wk
9 Jun
25 Jun
2 wk after
11 Jul
6 wk after
Hollyhock
Alcea rosea
3 – 17 Apr
6-8 wk
29 May
0 wk
11 Jun
2 wk after
Alpine delphinium
Delphinium elatum
6 Mar – 3 Apr
15 Apr
8-12 wk
29 May
10 Jun
0 wk
23 Jun
4 wk after
African marigold
Tagetes erecta
23 Apr – 7 May
14 May
6-8 wk
18 Jun
25 Jun
3 wk after
Black-eyed Susan
Rudbeckia hirta
9 – 23 Apr
19 May
6-8 wk
4 Jun
30 Jun
1 wk after
11 Jul
6 wk after
Wood sage
Salvia nemorosa
20 Mar – 3 Apr
5 Apr
8-10 wk
29 May
31 May
0 wk
23 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
9 Apr – 7 May
11 May
6-10 wk
18 Jun
22 Jun
3 wk after
California goldenpoppy
Eschscholzia californica
29 May
10 Jul
0 wk
30 May
30 Jun
0 wk
Painted tongue
Salpiglossis sinuata
9 – 23 Apr
2 May
8-10 wk
18 Jun
27 Jun
3 wk after
Water forget-me-not
Myosotis scorpioides
3 – 17 Apr
29 Apr
6-8 wk
29 May
10 Jun
0 wk
11 Jun
2 wk after