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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 131 days 14 May – 22 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
Greenhouse
1 – 29 Mar
5 Apr
8-12 wk
24 May
31 May
1 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
6 – 13 May
30 May
3-4 wk
3 Jun
20 Jun
3 wk after
Florence Fennel
Foeniculum vulgare
15 – 22 May
24 May
4-5 wk
19 Jun
21 Jun
5 wk after
2 Jul
7 wk after
Butter bean
Phaseolus lunatus
Season too short
27 May – 3 Jun
3-4 wk
24 Jun
6 wk after
Onion
Allium cepa (Cepa-gruppen)
19 Feb – 19 Mar
29 Mar
8-12 wk
14 May
24 May
0 wk
4 Jun
3 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
18 May
13 Jun
1 wk after
18 May
3 Jun
1 wk after
Maize
Zea mays
Fleece
26 Apr – 3 May
20 May
3-4 wk
24 May
10 Jun
1 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
21 – 28 Apr
28 Jun
3-4 wk
19 May
19 Jul
1 wk after
4 Jun
9 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
22 May
4-6 wk
30 May
19 Jun
2 wk after
30 May
9 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
22 – 29 May
4 Jun
3-4 wk
19 Jun
25 Jun
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
21 – 28 Apr
1 Jun
3-4 wk
19 May
22 Jun
1 wk after
4 Jun
12 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
31 May
2-4 wk
14 May
14 Jun
0 wk
14 May
4 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
18 May
13 Jun
1 wk after
18 May
3 Jun
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
29 Mar – 12 Apr
29 Apr
6-8 wk
24 May
10 Jun
1 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
6 – 20 May
6 Jun
2-4 wk
3 Jun
20 Jun
3 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
8 – 22 May
13 May
4-6 wk
19 Jun
5 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
19 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
8 Aug
0 wk
4 Jun
29 Jul
3 wk after
Garden sage
Salvia officinalis
10 – 24 Mar
4 May
8-10 wk
19 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
10 Feb – 10 Mar
26 Mar
10-14 wk
19 May
4 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
22 – 29 May
3-4 wk
19 Jun
5 wk after
Cornflower
Centaurea cyanus
14 May
14 Jul
0 wk
18 May
4 Jul
1 wk after
Statice
Limonium sinuatum
25 Mar – 8 Apr
24 Apr
8-10 wk
3 Jun
19 Jun
3 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
8 – 22 Apr
8 May
6-8 wk
3 Jun
19 Jun
3 wk after
27 Jul
11 wk after
Pinnate dahlia
Dahlia × pinnata
1 – 15 Apr
11 May
6-8 wk
27 May
22 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
23 Apr – 21 May
25 May
4-8 wk
18 Jun
22 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
27 Mar – 24 Apr
16 Jun
8-12 wk
19 Jun
11 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
8 – 22 Apr
18 May
6-8 wk
3 Jun
29 Jun
3 wk after
Hyacinth bean
Dolichos lablab
Season too short
22 Apr – 6 May
29 Apr
4-6 wk
3 Jun
3 wk after
Chinese lantern
Physalis alkekengi
10 – 24 Mar
14 Apr
8-10 wk
19 May
9 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
8 – 22 Apr
28 Apr
6-8 wk
3 Jun
9 Jun
3 wk after
27 Jul
11 wk after
Purple-top vervain
Verbena bonariensis
24 Feb – 24 Mar
14 Apr
8-12 wk
19 May
9 Jun
1 wk after
Cardoon
Cynara cardunculus
Fleece
1 – 29 Mar
20 Mar
8-12 wk
24 May
1 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
11 Mar – 8 Apr
21 Apr
8-12 wk
3 Jun
16 Jun
3 wk after
Globe amaranth
Gomphrena globosa
Fleece
8 – 22 Apr
5 May
6-8 wk
3 Jun
16 Jun
3 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
10 – 24 Apr
4 May
8-10 wk
19 Jun
29 Jun
5 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
22 Apr – 6 May
14 May
4-6 wk
3 Jun
11 Jun
3 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
11 Mar – 8 Apr
24 Apr
8-12 wk
3 Jun
19 Jun
3 wk after
Sweet Scabious
Scabiosa atropurpurea
24 Mar – 7 Apr
28 Apr
6-8 wk
19 May
9 Jun
1 wk after
2 Jul
7 wk after
Common zinnia
Zinnia elegans
22 Apr – 6 May
29 May
4-6 wk
3 Jun
26 Jun
3 wk after
Common morning glory
Ipomoea purpurea
15 – 29 May
20 May
3-5 wk
19 Jun
5 wk after
Garden cosmos
Cosmos bipinnatus
22 Apr – 6 May
25 May
4-6 wk
3 Jun
22 Jun
3 wk after
2 Jul
7 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
27 Mar – 24 Apr
21 May
8-12 wk
19 Jun
16 Jul
5 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
Fleece
11 – 25 Mar
24 Mar
10-12 wk
3 Jun
3 wk after
Sunflower
Helianthus annuus
6 – 13 May
3 Jun
3-4 wk
3 Jun
24 Jun
3 wk after
18 Jun
5 wk after
China aster
Callistephus chinensis
8 – 22 Apr
23 May
6-8 wk
3 Jun
4 Jul
3 wk after
2 Jul
7 wk after
Annual phlox
Phlox drummondii
29 Mar – 12 Apr
18 May
6-8 wk
24 May
29 Jun
1 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
8 – 22 Apr
18 May
6-8 wk
3 Jun
29 Jun
3 wk after
Black-eyed Susan
Rudbeckia hirta
24 Mar – 7 Apr
13 May
6-8 wk
19 May
24 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
10 Apr – 8 May
29 Apr
6-10 wk
19 Jun
5 wk after
California goldenpoppy
Eschscholzia californica
14 May
14 Jul
0 wk
18 May
4 Jul
1 wk after
Painted tongue
Salpiglossis sinuata
25 Mar – 8 Apr
26 Apr
8-10 wk
3 Jun
21 Jun
3 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