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Method
Rel. frost
Last spring frost (0°C) 30 May Frost 1 of 10 years · 20 years of data
Frost-free season 136 days 30 May – 13 Oct
Probability that frost is over

90% = 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
17 Jun
5-7 wk
30 May
22 Jul
0 wk
23 May
12 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
18 Apr – 2 May
29 Jun
4-6 wk
30 May
27 Jul
0 wk
23 May
17 Jul
1 wk before
Chili pepper
Capsicum annuum
Season too short
13 Mar – 10 Apr
8-12 wk
5 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
11 – 25 Apr
12 Jun
5-7 wk
30 May
17 Jul
0 wk
18 May
7 Jul
2 wk before
Garden cucumber
Cucumis sativus
Greenhouse
8 – 15 May
23 May
3-4 wk
5 Jun
13 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
27 May – 3 Jun
9 Jun
4-5 wk
1 Jul
7 Jul
5 wk after
5 Jul
5 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)
7 Mar – 4 Apr
2 Apr
8-12 wk
30 May
0 wk
9 Jun
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
23 May
17 Jun
1 wk before
23 May
7 Jun
1 wk before
Maize
Zea mays
Greenhouse
2 – 9 May
13 May
3-4 wk
30 May
3 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
4 – 11 May
6 Jul
3-4 wk
1 Jun
27 Jul
0 wk
9 Jun
17 Jul
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
30 May
7 Jul
0 wk
18 May
27 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
11 – 25 Apr
12 Jun
5-7 wk
30 May
17 Jul
0 wk
18 May
7 Jul
2 wk before
Potato
Solanum tuberosum
23 Apr – 7 May
9 Jun
4-6 wk
4 Jun
7 Jul
1 wk after
4 Jun
27 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
11 – 25 Apr
22 Jun
5-7 wk
30 May
27 Jul
0 wk
23 May
17 Jul
1 wk before
Pumpkin
Cucurbita pepo
Fleece
15 – 22 May
28 May
3-4 wk
12 Jun
18 Jun
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
4 – 11 May
1 Jul
3-4 wk
1 Jun
22 Jul
0 wk
9 Jun
12 Jul
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
18 Apr – 2 May
24 Jun
4-6 wk
30 May
22 Jul
0 wk
Lettuce
Lactuca sativa
2 – 9 May
11 Jul
3-4 wk
30 May
1 Aug
0 wk
23 May
22 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
18 Apr – 2 May
24 Jun
4-6 wk
30 May
22 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
20 Apr – 4 May
3 Jun
2-4 wk
18 May
17 Jun
2 wk before
18 May
7 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
23 May
17 Jun
1 wk before
23 May
7 Jun
1 wk before
Spinach
Spinacia oleracea
2 – 9 May
26 Jul
3-4 wk
30 May
16 Aug
0 wk
12 May
6 Aug
3 wk before
Sweet potato
Ipomoea batatas
26 Jun – 10 Jul
4-6 wk
7 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
4 – 18 Apr
22 Apr
6-8 wk
30 May
3 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
8 – 22 May
30 May
2-4 wk
5 Jun
13 Jun
1 wk after
20 Jun
3 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
18 Apr – 2 May
24 Jun
4-6 wk
30 May
22 Jul
0 wk
Garden pea
Pisum sativum
2 – 9 May
26 Jun
3-4 wk
30 May
17 Jul
0 wk
23 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
Fleece
1 – 15 May
6 May
4-6 wk
12 Jun
2 wk after
Lemon balm
Melissa officinalis
21 Mar – 4 Apr
22 May
8-10 wk
30 May
17 Jul
0 wk
20 Jun
7 Jul
3 wk after
Dill
Anethum graveolens
23 May
27 Jul
1 wk before
Wild chives
Allium schoenoprasum
4 – 18 Apr
5 Jun
6-8 wk
30 May
17 Jul
0 wk
23 May
7 Jul
1 wk before
Spearmint
Mentha spicata
7 Mar – 4 Apr
22 May
8-12 wk
30 May
17 Jul
0 wk
20 Jun
7 Jul
3 wk after
Coriander
Coriandrum sativum
30 May
16 Aug
0 wk
9 Jun
6 Aug
1 wk after
Garden sage
Salvia officinalis
23 Mar – 6 Apr
7 May
8-10 wk
1 Jun
2 Jul
0 wk
Common thyme
Thymus vulgaris
21 Mar – 4 Apr
12 May
8-10 wk
30 May
7 Jul
0 wk
Oregano
Origanum vulgare
4 – 18 Apr
26 May
6-8 wk
30 May
7 Jul
0 wk
20 Jun
27 Jun
3 wk after
Parsley
Petroselinum crispum
4 – 18 Apr
26 May
6-8 wk
30 May
7 Jul
0 wk
23 May
27 Jun
1 wk before
Rosemary
Salvia rosmarinus
23 Feb – 23 Mar
8 Apr
10-14 wk
1 Jun
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
Fleece
15 – 22 May
3-4 wk
12 Jun
2 wk after
Cornflower
Centaurea cyanus
30 May
17 Jul
0 wk
23 May
7 Jul
1 wk before
Statice
Limonium sinuatum
3 – 17 Apr
13 Apr
8-10 wk
12 Jun
2 wk after
Sweet William
Dianthus barbatus
4 – 18 Apr
6-8 wk
30 May
0 wk
4 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
17 Apr – 1 May
27 Apr
6-8 wk
12 Jun
2 wk after
7 Aug
10 wk after
Pinnate dahlia
Dahlia × pinnata
15 – 29 Apr
29 Apr
6-8 wk
10 Jun
10 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
25 Apr – 23 May
13 May
4-8 wk
20 Jun
3 wk after
20 Jun
3 wk after
Foxglove
Digitalis purpurea
21 Mar – 4 Apr
8-10 wk
30 May
0 wk
9 Jun
1 wk after
Busy lizzie
Impatiens walleriana
8 Apr – 6 May
24 May
8-12 wk
1 Jul
19 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
17 Apr – 1 May
7 May
6-8 wk
12 Jun
18 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
22 Apr
8-10 wk
1 Jun
17 Jun
0 wk
Love in a mist
Nigella damascena
30 May
2 Jul
0 wk
23 May
22 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
17 Apr – 1 May
17 Apr
6-8 wk
12 Jun
2 wk after
7 Aug
10 wk after
Purple-top vervain
Verbena bonariensis
9 Mar – 6 Apr
22 Apr
8-12 wk
1 Jun
17 Jun
0 wk
Cardoon
Cynara cardunculus
20 Mar – 17 Apr
23 Mar
8-12 wk
12 Jun
2 wk after
Regal-foxtail
Ptilotus nobilis
Greenhouse
13 Mar – 10 Apr
15 Apr
8-12 wk
5 Jun
10 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
10 – 24 Apr
29 Apr
6-8 wk
5 Jun
10 Jun
1 wk after
Corn poppy
Papaver rhoeas
30 May
17 Jul
0 wk
23 May
7 Jul
1 wk before
Snapdragon
Antirrhinum majus
7 Mar – 4 Apr
12 May
8-12 wk
30 May
7 Jul
0 wk
4 Jun
27 Jun
1 wk after
Flossflower
Ageratum houstonianum
22 Apr – 6 May
23 Apr
8-10 wk
1 Jul
5 wk after
Sweet pea
Lathyrus odoratus
4 – 25 Apr
2 Jun
5-8 wk
30 May
7 Jul
0 wk
Stock
Matthiola incana
4 – 18 Apr
5 Jun
6-8 wk
30 May
17 Jul
0 wk
9 Jun
7 Jul
1 wk after
Wormwood
Artemisia absinthium
4 – 18 Apr
6 May
6-8 wk
30 May
17 Jun
0 wk
9 Jun
1 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
24 Apr – 8 May
8 May
4-6 wk
5 Jun
5 Jun
1 wk after
Garden pansy
Viola × wittrockiana
21 Mar – 4 Apr
22 May
8-10 wk
30 May
17 Jul
0 wk
4 Jun
7 Jul
1 wk after
Petunia
Petunia
20 Mar – 17 Apr
13 Apr
8-12 wk
12 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
6 – 20 Apr
6 May
6-8 wk
1 Jun
17 Jun
0 wk
5 Jul
5 wk after
Common zinnia
Zinnia elegans
1 – 15 May
6 May
4-6 wk
12 Jun
2 wk after
Common morning glory
Ipomoea purpurea
Fleece
8 – 22 May
13 May
3-5 wk
12 Jun
2 wk after
Garden cosmos
Cosmos bipinnatus
1 – 15 May
13 May
4-6 wk
12 Jun
2 wk after
5 Jul
5 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
8 Apr – 6 May
28 Apr
8-12 wk
1 Jul
5 wk after
Bee balm
Monarda didyma
7 Mar – 4 Apr
22 Apr
8-12 wk
30 May
17 Jun
0 wk
20 Jun
3 wk after
Yarrow
Achillea millefolium
4 – 18 Apr
6 Apr
6-8 wk
30 May
0 wk
9 Jun
1 wk after
Safflower
Carthamus tinctorius
30 May
17 Jun
0 wk
23 May
7 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
4 – 18 Apr
26 May
6-8 wk
30 May
7 Jul
0 wk
21 Apr
27 Jun
6 wk before
Bishop's flower
Ammi majus
18 Apr – 2 May
9 Jun
4-6 wk
30 May
7 Jul
0 wk
9 Jun
27 Jun
1 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
13 – 27 Mar
18 Mar
10-12 wk
5 Jun
1 wk after
Sunflower
Helianthus annuus
15 – 22 May
16 Jun
3-4 wk
12 Jun
7 Jul
2 wk after
20 Jun
27 Jun
3 wk after
China aster
Callistephus chinensis
17 Apr – 1 May
5 Jun
6-8 wk
12 Jun
17 Jul
2 wk after
5 Jul
7 Jul
5 wk after
Annual phlox
Phlox drummondii
10 – 24 Apr
7 May
6-8 wk
5 Jun
18 Jun
1 wk after
5 Jul
5 wk after
Hollyhock
Alcea rosea
4 – 18 Apr
6-8 wk
30 May
0 wk
9 Jun
1 wk after
Alpine delphinium
Delphinium elatum
7 Mar – 4 Apr
22 Apr
8-12 wk
30 May
17 Jun
0 wk
20 Jun
3 wk after
African marigold
Tagetes erecta
17 Apr – 1 May
7 May
6-8 wk
12 Jun
18 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
6 – 20 Apr
26 May
6-8 wk
1 Jun
7 Jul
0 wk
5 Jul
5 wk after
Wood sage
Salvia nemorosa
21 Mar – 4 Apr
12 Apr
8-10 wk
30 May
7 Jun
0 wk
20 Jun
3 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
3 Apr – 1 May
22 Apr
6-10 wk
12 Jun
2 wk after
California goldenpoppy
Eschscholzia californica
30 May
17 Jul
0 wk
23 May
7 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
3 – 17 Apr
12 May
8-10 wk
12 Jun
7 Jul
2 wk after
Water forget-me-not
Myosotis scorpioides
4 – 18 Apr
6 May
6-8 wk
30 May
17 Jun
0 wk
9 Jun
1 wk after