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Method
Rel. frost
Last spring frost (0°C) 25 May Frost 1 of 4 years · 20 years of data
Frost-free season 128 days 25 May – 30 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)
6 – 20 Apr
17 Jun
5-7 wk
25 May
22 Jul
0 wk
18 May
12 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
13 – 27 Apr
29 Jun
4-6 wk
25 May
27 Jul
0 wk
18 May
17 Jul
1 wk before
Chili pepper
Capsicum annuum
Fleece
15 Mar – 12 Apr
8 Apr
8-12 wk
7 Jun
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
6 – 20 Apr
12 Jun
5-7 wk
25 May
17 Jul
0 wk
13 May
7 Jul
2 wk before
Garden cucumber
Cucumis sativus
29 May – 5 Jun
2 Jun
3-4 wk
26 Jun
5 wk after
Florence Fennel
Foeniculum vulgare
22 – 29 May
6 Jun
4-5 wk
26 Jun
4 Jul
5 wk after
30 Jun
5 wk after
Butter bean
Phaseolus lunatus
Greenhouse
5 – 12 Jun
3-4 wk
3 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
2 – 30 Mar
2 Apr
8-12 wk
25 May
28 May
0 wk
4 Jun
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
18 May
17 Jun
1 wk before
18 May
7 Jun
1 wk before
Maize
Zea mays
10 – 17 May
23 May
3-4 wk
7 Jun
13 Jun
2 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
29 Apr – 6 May
6 Jul
3-4 wk
27 May
27 Jul
0 wk
4 Jun
17 Jul
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
25 May
7 Jul
0 wk
13 May
27 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
6 – 20 Apr
12 Jun
5-7 wk
25 May
17 Jul
0 wk
13 May
7 Jul
2 wk before
Potato
Solanum tuberosum
18 Apr – 2 May
5 Jun
4-6 wk
30 May
3 Jul
1 wk after
30 May
23 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
6 – 20 Apr
22 Jun
5-7 wk
25 May
27 Jul
0 wk
18 May
17 Jul
1 wk before
Pumpkin
Cucurbita pepo
29 May – 5 Jun
18 Jun
3-4 wk
26 Jun
9 Jul
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
29 Apr – 6 May
20 Jun
3-4 wk
27 May
11 Jul
0 wk
4 Jun
1 Jul
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
13 – 27 Apr
24 Jun
4-6 wk
25 May
22 Jul
0 wk
Lettuce
Lactuca sativa
27 Apr – 4 May
11 Jul
3-4 wk
25 May
1 Aug
0 wk
18 May
22 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
13 – 27 Apr
24 Jun
4-6 wk
25 May
22 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
15 – 29 Apr
3 Jun
2-4 wk
13 May
17 Jun
2 wk before
13 May
7 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
18 May
17 Jun
1 wk before
18 May
7 Jun
1 wk before
Spinach
Spinacia oleracea
27 Apr – 4 May
26 Jul
3-4 wk
25 May
16 Aug
0 wk
7 May
6 Aug
3 wk before
Sweet potato
Ipomoea batatas
21 Jun – 5 Jul
4-6 wk
2 Aug
10 wk after
Garden tomato
Solanum lycopersicum
12 – 26 Apr
2 May
6-8 wk
7 Jun
13 Jun
2 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
10 – 24 May
20 Jun
2-4 wk
7 Jun
4 Jul
2 wk after
30 Jun
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
13 – 27 Apr
24 Jun
4-6 wk
25 May
22 Jul
0 wk
Garden pea
Pisum sativum
27 Apr – 4 May
26 Jun
3-4 wk
25 May
17 Jul
0 wk
18 May
7 Jul
1 wk before

Herbs

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Basil
Ocimum basilicum
15 – 29 May
27 May
4-6 wk
26 Jun
5 wk after
Lemon balm
Melissa officinalis
16 – 30 Mar
22 May
8-10 wk
25 May
17 Jul
0 wk
15 Jun
7 Jul
3 wk after
Dill
Anethum graveolens
18 May
27 Jul
1 wk before
Wild chives
Allium schoenoprasum
30 Mar – 13 Apr
5 Jun
6-8 wk
25 May
17 Jul
0 wk
18 May
7 Jul
1 wk before
Spearmint
Mentha spicata
2 – 30 Mar
22 May
8-12 wk
25 May
17 Jul
0 wk
15 Jun
7 Jul
3 wk after
Coriander
Coriandrum sativum
25 May
16 Aug
0 wk
4 Jun
6 Aug
1 wk after
Garden sage
Salvia officinalis
18 Mar – 1 Apr
7 May
8-10 wk
27 May
2 Jul
0 wk
Common thyme
Thymus vulgaris
16 – 30 Mar
12 May
8-10 wk
25 May
7 Jul
0 wk
Oregano
Origanum vulgare
30 Mar – 13 Apr
26 May
6-8 wk
25 May
7 Jul
0 wk
15 Jun
27 Jun
3 wk after
Parsley
Petroselinum crispum
30 Mar – 13 Apr
26 May
6-8 wk
25 May
7 Jul
0 wk
18 May
27 Jun
1 wk before
Rosemary
Salvia rosmarinus
18 Feb – 18 Mar
8 Apr
10-14 wk
27 May
17 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
29 May – 5 Jun
3 Jun
3-4 wk
26 Jun
5 wk after
Cornflower
Centaurea cyanus
25 May
17 Jul
0 wk
18 May
7 Jul
1 wk before
Statice
Limonium sinuatum
29 Mar – 12 Apr
5 May
8-10 wk
7 Jun
30 Jun
2 wk after
Sweet William
Dianthus barbatus
30 Mar – 13 Apr
6-8 wk
25 May
0 wk
30 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
12 – 26 Apr
19 May
6-8 wk
7 Jun
30 Jun
2 wk after
2 Aug
10 wk after
Pinnate dahlia
Dahlia × pinnata
10 – 24 Apr
23 May
6-8 wk
5 Jun
4 Jul
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
20 Apr – 18 May
6 Jun
4-8 wk
15 Jun
4 Jul
3 wk after
15 Jun
24 Jun
3 wk after
Foxglove
Digitalis purpurea
16 – 30 Mar
8-10 wk
25 May
0 wk
4 Jun
1 wk after
Busy lizzie
Impatiens walleriana
3 Apr – 1 May
29 Jun
8-12 wk
26 Jun
24 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
12 – 26 Apr
29 May
6-8 wk
7 Jun
10 Jul
2 wk after
Hyacinth bean
Dolichos lablab
Greenhouse
26 Apr – 10 May
12 May
4-6 wk
7 Jun
9 Jun
2 wk after
Chinese lantern
Physalis alkekengi
18 Mar – 1 Apr
22 Apr
8-10 wk
27 May
17 Jun
0 wk
Love in a mist
Nigella damascena
25 May
2 Jul
0 wk
18 May
22 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
12 – 26 Apr
9 May
6-8 wk
7 Jun
20 Jun
2 wk after
2 Aug
10 wk after
Purple-top vervain
Verbena bonariensis
4 Mar – 1 Apr
22 Apr
8-12 wk
27 May
17 Jun
0 wk
Cardoon
Cynara cardunculus
Fleece
8 Mar – 5 Apr
23 Mar
8-12 wk
31 May
1 wk after
Regal-foxtail
Ptilotus nobilis
3 Apr – 1 May
19 Apr
8-12 wk
26 Jun
5 wk after
Globe amaranth
Gomphrena globosa
1 – 15 May
3 May
6-8 wk
26 Jun
5 wk after
Corn poppy
Papaver rhoeas
25 May
17 Jul
0 wk
18 May
7 Jul
1 wk before
Snapdragon
Antirrhinum majus
2 – 30 Mar
12 May
8-12 wk
25 May
7 Jul
0 wk
30 May
27 Jun
1 wk after
Flossflower
Ageratum houstonianum
17 Apr – 1 May
15 May
8-10 wk
26 Jun
10 Jul
5 wk after
Sweet pea
Lathyrus odoratus
30 Mar – 20 Apr
2 Jun
5-8 wk
25 May
7 Jul
0 wk
Stock
Matthiola incana
30 Mar – 13 Apr
5 Jun
6-8 wk
25 May
17 Jul
0 wk
4 Jun
7 Jul
1 wk after
Wormwood
Artemisia absinthium
30 Mar – 13 Apr
6 May
6-8 wk
25 May
17 Jun
0 wk
4 Jun
7 Jun
1 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
26 Apr – 10 May
27 May
4-6 wk
7 Jun
24 Jun
2 wk after
Garden pansy
Viola × wittrockiana
16 – 30 Mar
22 May
8-10 wk
25 May
17 Jul
0 wk
30 May
7 Jul
1 wk after
Petunia
Petunia
15 Mar – 12 Apr
5 May
8-12 wk
7 Jun
30 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
1 – 15 Apr
6 May
6-8 wk
27 May
17 Jun
0 wk
30 Jun
5 wk after
Common zinnia
Zinnia elegans
26 Apr – 10 May
11 Jun
4-6 wk
7 Jun
9 Jul
2 wk after
Common morning glory
Ipomoea purpurea
22 May – 5 Jun
3 Jun
3-5 wk
26 Jun
5 wk after
Garden cosmos
Cosmos bipinnatus
26 Apr – 10 May
6 Jun
4-6 wk
7 Jun
4 Jul
2 wk after
30 Jun
5 wk after
Scarlet milkweed
Asclepias curassavica
24 Apr – 22 May
19 May
8-12 wk
17 Jul
8 wk after
Bee balm
Monarda didyma
2 – 30 Mar
22 Apr
8-12 wk
25 May
17 Jun
0 wk
15 Jun
3 wk after
Yarrow
Achillea millefolium
30 Mar – 13 Apr
6 Apr
6-8 wk
25 May
0 wk
4 Jun
1 wk after
Safflower
Carthamus tinctorius
25 May
17 Jun
0 wk
18 May
7 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
30 Mar – 13 Apr
26 May
6-8 wk
25 May
7 Jul
0 wk
16 Apr
27 Jun
6 wk before
Bishop's flower
Ammi majus
13 – 27 Apr
9 Jun
4-6 wk
25 May
7 Jul
0 wk
4 Jun
27 Jun
1 wk after
Drumsticks
Pycnosorus globosus
Fleece
15 – 29 Mar
5 Apr
10-12 wk
7 Jun
14 Jun
2 wk after
Sunflower
Helianthus annuus
10 – 17 May
16 Jun
3-4 wk
7 Jun
7 Jul
2 wk after
15 Jun
27 Jun
3 wk after
China aster
Callistephus chinensis
12 – 26 Apr
5 Jun
6-8 wk
7 Jun
17 Jul
2 wk after
30 Jun
7 Jul
5 wk after
Annual phlox
Phlox drummondii
5 – 19 Apr
29 May
6-8 wk
31 May
10 Jul
1 wk after
30 Jun
30 Jun
5 wk after
Hollyhock
Alcea rosea
30 Mar – 13 Apr
6-8 wk
25 May
0 wk
4 Jun
1 wk after
Alpine delphinium
Delphinium elatum
2 – 30 Mar
22 Apr
8-12 wk
25 May
17 Jun
0 wk
15 Jun
3 wk after
African marigold
Tagetes erecta
12 – 26 Apr
29 May
6-8 wk
7 Jun
10 Jul
2 wk after
Black-eyed Susan
Rudbeckia hirta
1 – 15 Apr
26 May
6-8 wk
27 May
7 Jul
0 wk
30 Jun
5 wk after
Wood sage
Salvia nemorosa
16 – 30 Mar
12 Apr
8-10 wk
25 May
7 Jun
0 wk
15 Jun
3 wk after
Black-eyed susan vine
Thunbergia alata
17 Apr – 15 May
13 May
6-10 wk
26 Jun
5 wk after
California goldenpoppy
Eschscholzia californica
25 May
17 Jul
0 wk
18 May
7 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
29 Mar – 12 Apr
9 May
8-10 wk
7 Jun
4 Jul
2 wk after
Water forget-me-not
Myosotis scorpioides
30 Mar – 13 Apr
6 May
6-8 wk
25 May
17 Jun
0 wk
4 Jun
7 Jun
1 wk after