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Method
Rel. frost
Last spring frost (0°C) 24 May Frost 1 of 4 years · 20 years of data
Frost-free season 113 days 24 May – 14 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)
5 – 19 Apr
11 Jun
5-7 wk
24 May
16 Jul
0 wk
25 May
6 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
12 – 26 Apr
23 Jun
4-6 wk
24 May
21 Jul
0 wk
25 May
11 Jul
0 wk
Chili pepper
Capsicum annuum
Greenhouse
7 Mar – 4 Apr
12 Apr
8-12 wk
30 May
7 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
5 – 19 Apr
6 Jun
5-7 wk
24 May
11 Jul
0 wk
24 May
1 Jul
0 wk
Garden cucumber
Cucumis sativus
Fleece
9 – 16 May
6 Jun
3-4 wk
6 Jun
27 Jun
2 wk after
Florence Fennel
Foeniculum vulgare
21 – 28 May
4-5 wk
25 Jun
5 wk after
6 Jul
6 wk after
Butter bean
Phaseolus lunatus
Season too short
4 – 11 Jun
3-4 wk
2 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
1 – 29 Mar
25 Mar
8-12 wk
24 May
0 wk
6 Jun
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
25 May
9 Jun
0 wk
25 May
30 May
0 wk
Maize
Zea mays
9 – 16 May
9 May
3-4 wk
6 Jun
2 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
28 Apr – 5 May
30 Jun
3-4 wk
26 May
21 Jul
0 wk
6 Jun
11 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
24 May
1 Jul
0 wk
24 May
21 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
5 – 19 Apr
6 Jun
5-7 wk
24 May
11 Jul
0 wk
24 May
1 Jul
0 wk
Potato
Solanum tuberosum
22 Apr – 6 May
20 May
4-6 wk
3 Jun
17 Jun
1 wk after
3 Jun
7 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
5 – 19 Apr
16 Jun
5-7 wk
24 May
21 Jul
0 wk
25 May
11 Jul
0 wk
Pumpkin
Cucurbita pepo
28 May – 4 Jun
11 Jun
3-4 wk
25 Jun
2 Jul
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
28 Apr – 5 May
6 Jun
3-4 wk
26 May
27 Jun
0 wk
6 Jun
17 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
12 – 26 Apr
18 Jun
4-6 wk
24 May
16 Jul
0 wk
Lettuce
Lactuca sativa
26 Apr – 3 May
5 Jul
3-4 wk
24 May
26 Jul
0 wk
25 May
16 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
12 – 26 Apr
18 Jun
4-6 wk
24 May
16 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
26 Apr – 10 May
27 May
2-4 wk
24 May
10 Jun
0 wk
24 May
31 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
25 May
9 Jun
0 wk
25 May
30 May
0 wk
Spinach
Spinacia oleracea
26 Apr – 3 May
20 Jul
3-4 wk
24 May
10 Aug
0 wk
21 May
31 Jul
0 wk
Sweet potato
Ipomoea batatas
18 Jun – 2 Jul
4-6 wk
30 Jul
10 wk after
Garden tomato
Solanum lycopersicum
11 – 25 Apr
18 Apr
6-8 wk
6 Jun
2 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
9 – 23 May
13 Jun
2-4 wk
6 Jun
27 Jun
2 wk after
6 Jul
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
12 – 26 Apr
18 Jun
4-6 wk
24 May
16 Jul
0 wk
Garden pea
Pisum sativum
26 Apr – 3 May
20 Jun
3-4 wk
24 May
11 Jul
0 wk
25 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
14 – 28 May
20 May
4-6 wk
25 Jun
5 wk after
Lemon balm
Melissa officinalis
15 – 29 Mar
16 May
8-10 wk
24 May
11 Jul
0 wk
18 Jun
1 Jul
4 wk after
Dill
Anethum graveolens
25 May
21 Jul
0 wk
Wild chives
Allium schoenoprasum
29 Mar – 12 Apr
30 May
6-8 wk
24 May
11 Jul
0 wk
25 May
1 Jul
0 wk
Spearmint
Mentha spicata
1 – 29 Mar
16 May
8-12 wk
24 May
11 Jul
0 wk
18 Jun
1 Jul
4 wk after
Coriander
Coriandrum sativum
24 May
10 Aug
0 wk
6 Jun
31 Jul
2 wk after
Garden sage
Salvia officinalis
17 – 31 Mar
1 May
8-10 wk
26 May
26 Jun
0 wk
Common thyme
Thymus vulgaris
15 – 29 Mar
6 May
8-10 wk
24 May
1 Jul
0 wk
Oregano
Origanum vulgare
29 Mar – 12 Apr
20 May
6-8 wk
24 May
1 Jul
0 wk
18 Jun
21 Jun
4 wk after
Parsley
Petroselinum crispum
29 Mar – 12 Apr
20 May
6-8 wk
24 May
1 Jul
0 wk
25 May
21 Jun
0 wk
Rosemary
Salvia rosmarinus
17 Feb – 17 Mar
29 Mar
10-14 wk
26 May
7 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
28 May – 4 Jun
3-4 wk
25 Jun
5 wk after
Cornflower
Centaurea cyanus
24 May
11 Jul
0 wk
25 May
1 Jul
0 wk
Statice
Limonium sinuatum
28 Mar – 11 Apr
23 Apr
8-10 wk
6 Jun
18 Jun
2 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
11 – 25 Apr
7 May
6-8 wk
6 Jun
18 Jun
2 wk after
30 Jul
10 wk after
Pinnate dahlia
Dahlia × pinnata
9 – 23 Apr
16 May
6-8 wk
4 Jun
27 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
23 Apr – 21 May
30 May
4-8 wk
18 Jun
27 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
2 – 30 Apr
13 Jun
8-12 wk
25 Jun
8 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
11 – 25 Apr
17 May
6-8 wk
6 Jun
28 Jun
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
25 Apr – 9 May
26 Apr
4-6 wk
6 Jun
2 wk after
Chinese lantern
Physalis alkekengi
17 – 31 Mar
16 Apr
8-10 wk
26 May
11 Jun
0 wk
Love in a mist
Nigella damascena
24 May
26 Jun
0 wk
25 May
16 Jun
0 wk
Strawflower
Xerochrysum bracteatum
11 – 25 Apr
27 Apr
6-8 wk
6 Jun
8 Jun
2 wk after
30 Jul
10 wk after
Purple-top vervain
Verbena bonariensis
3 – 31 Mar
16 Apr
8-12 wk
26 May
11 Jun
0 wk
Cardoon
Cynara cardunculus
Fleece
7 Mar – 4 Apr
17 Mar
8-12 wk
30 May
1 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
14 Mar – 11 Apr
18 Apr
8-12 wk
6 Jun
13 Jun
2 wk after
Globe amaranth
Gomphrena globosa
Fleece
11 – 25 Apr
2 May
6-8 wk
6 Jun
13 Jun
2 wk after
Corn poppy
Papaver rhoeas
24 May
11 Jul
0 wk
25 May
1 Jul
0 wk
Snapdragon
Antirrhinum majus
1 – 29 Mar
6 May
8-12 wk
24 May
1 Jul
0 wk
3 Jun
21 Jun
1 wk after
Flossflower
Ageratum houstonianum
16 – 30 Apr
3 May
8-10 wk
25 Jun
28 Jun
5 wk after
Sweet pea
Lathyrus odoratus
29 Mar – 19 Apr
27 May
5-8 wk
24 May
1 Jul
0 wk
Stock
Matthiola incana
29 Mar – 12 Apr
30 May
6-8 wk
24 May
11 Jul
0 wk
6 Jun
1 Jul
2 wk after
Wormwood
Artemisia absinthium
29 Mar – 12 Apr
30 Apr
6-8 wk
24 May
11 Jun
0 wk
6 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
25 Apr – 9 May
11 May
4-6 wk
6 Jun
8 Jun
2 wk after
Garden pansy
Viola × wittrockiana
15 – 29 Mar
16 May
8-10 wk
24 May
11 Jul
0 wk
3 Jun
1 Jul
1 wk after
Petunia
Petunia
14 Mar – 11 Apr
23 Apr
8-12 wk
6 Jun
18 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
31 Mar – 14 Apr
30 Apr
6-8 wk
26 May
11 Jun
0 wk
6 Jul
6 wk after
Common zinnia
Zinnia elegans
25 Apr – 9 May
26 May
4-6 wk
6 Jun
23 Jun
2 wk after
Common morning glory
Ipomoea purpurea
21 May – 4 Jun
27 May
3-5 wk
25 Jun
5 wk after
Garden cosmos
Cosmos bipinnatus
25 Apr – 9 May
30 May
4-6 wk
6 Jun
27 Jun
2 wk after
6 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
23 Apr – 21 May
12 May
8-12 wk
16 Jul
8 wk after
Bee balm
Monarda didyma
1 – 29 Mar
16 Apr
8-12 wk
24 May
11 Jun
0 wk
18 Jun
4 wk after
Yarrow
Achillea millefolium
29 Mar – 12 Apr
31 Mar
6-8 wk
24 May
0 wk
6 Jun
2 wk after
Safflower
Carthamus tinctorius
24 May
11 Jun
0 wk
25 May
1 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
29 Mar – 12 Apr
20 May
6-8 wk
24 May
1 Jul
0 wk
8 May
21 Jun
2 wk before
Bishop's flower
Ammi majus
12 – 26 Apr
3 Jun
4-6 wk
24 May
1 Jul
0 wk
6 Jun
21 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Fleece
14 – 28 Mar
29 Mar
10-12 wk
6 Jun
7 Jun
2 wk after
Sunflower
Helianthus annuus
9 – 16 May
6 Jun
3-4 wk
6 Jun
27 Jun
2 wk after
18 Jun
4 wk after
China aster
Callistephus chinensis
11 – 25 Apr
26 May
6-8 wk
6 Jun
7 Jul
2 wk after
6 Jul
6 wk after
Annual phlox
Phlox drummondii
4 – 18 Apr
17 May
6-8 wk
30 May
28 Jun
1 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
16 Apr
8-12 wk
24 May
11 Jun
0 wk
18 Jun
4 wk after
African marigold
Tagetes erecta
11 – 25 Apr
17 May
6-8 wk
6 Jun
28 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
31 Mar – 14 Apr
16 May
6-8 wk
26 May
27 Jun
0 wk
6 Jul
6 wk after
Wood sage
Salvia nemorosa
15 – 29 Mar
6 Apr
8-10 wk
24 May
1 Jun
0 wk
18 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
16 Apr – 14 May
6 May
6-10 wk
25 Jun
5 wk after
California goldenpoppy
Eschscholzia californica
24 May
11 Jul
0 wk
25 May
1 Jul
0 wk
Painted tongue
Salpiglossis sinuata
28 Mar – 11 Apr
22 Apr
8-10 wk
6 Jun
17 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
29 Mar – 12 Apr
30 Apr
6-8 wk
24 May
11 Jun
0 wk
6 Jun
2 wk after