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Method
Rel. frost
Last spring frost (0°C) 28 May Frost 1 of 10 years · 20 years of data
Frost-free season 134 days 28 May – 9 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)
9 – 23 Apr
8 Jun
5-7 wk
28 May
13 Jul
0 wk
29 May
3 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
16 – 30 Apr
20 Jun
4-6 wk
28 May
18 Jul
0 wk
29 May
8 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
11 Mar – 8 Apr
8-12 wk
3 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
9 – 23 Apr
3 Jun
5-7 wk
28 May
8 Jul
0 wk
28 May
28 Jun
0 wk
Garden cucumber
Cucumis sativus
Season too short
6 – 13 May
3-4 wk
3 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
25 May – 1 Jun
31 May
4-5 wk
29 Jun
5 wk after
10 Jul
6 wk after
Butter bean
Phaseolus lunatus
Season too short
8 – 15 Jun
3-4 wk
6 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Fleece
5 Mar – 2 Apr
24 Mar
8-12 wk
28 May
0 wk
3 Jun
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
Fleece
25 May
8 Jun
0 wk
25 May
29 May
0 wk
Maize
Zea mays
Season too short
30 Apr – 7 May
3-4 wk
28 May
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
2 – 9 May
27 Jun
3-4 wk
30 May
18 Jul
0 wk
10 Jun
8 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
28 May
28 Jun
0 wk
28 May
18 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
9 – 23 Apr
3 Jun
5-7 wk
28 May
8 Jul
0 wk
28 May
28 Jun
0 wk
Potato
Solanum tuberosum
Fleece
17 Apr – 1 May
22 May
4-6 wk
29 May
19 Jun
0 wk
29 May
9 Jun
0 wk
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
9 – 23 Apr
13 Jun
5-7 wk
28 May
18 Jul
0 wk
29 May
8 Jul
0 wk
Pumpkin
Cucurbita pepo
Greenhouse
6 – 13 May
27 May
3-4 wk
3 Jun
17 Jun
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Fleece
30 Apr – 7 May
30 May
3-4 wk
28 May
20 Jun
0 wk
3 Jun
10 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
16 – 30 Apr
15 Jun
4-6 wk
28 May
13 Jul
0 wk
Lettuce
Lactuca sativa
30 Apr – 7 May
2 Jul
3-4 wk
28 May
23 Jul
0 wk
29 May
13 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
16 – 30 Apr
15 Jun
4-6 wk
28 May
13 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
30 Apr – 14 May
21 May
2-4 wk
28 May
4 Jun
0 wk
28 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Fleece
25 May
8 Jun
0 wk
25 May
29 May
0 wk
Spinach
Spinacia oleracea
30 Apr – 7 May
17 Jul
3-4 wk
28 May
7 Aug
0 wk
25 May
28 Jul
0 wk
Sweet potato
Ipomoea batatas
22 Jun – 6 Jul
4-6 wk
3 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Season too short
2 – 16 Apr
6-8 wk
28 May
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Greenhouse
30 Apr – 14 May
29 May
2-4 wk
28 May
12 Jun
0 wk
10 Jun
2 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
16 – 30 Apr
15 Jun
4-6 wk
28 May
13 Jul
0 wk
Garden pea
Pisum sativum
30 Apr – 7 May
17 Jun
3-4 wk
28 May
8 Jul
0 wk
29 May
28 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
Season too short
22 Apr – 6 May
5 May
4-6 wk
3 Jun
1 wk after
Lemon balm
Melissa officinalis
19 Mar – 2 Apr
13 May
8-10 wk
28 May
8 Jul
0 wk
22 Jun
28 Jun
4 wk after
Dill
Anethum graveolens
29 May
18 Jul
0 wk
Wild chives
Allium schoenoprasum
2 – 16 Apr
27 May
6-8 wk
28 May
8 Jul
0 wk
29 May
28 Jun
0 wk
Spearmint
Mentha spicata
5 Mar – 2 Apr
13 May
8-12 wk
28 May
8 Jul
0 wk
22 Jun
28 Jun
4 wk after
Coriander
Coriandrum sativum
28 May
7 Aug
0 wk
10 Jun
28 Jul
2 wk after
Garden sage
Salvia officinalis
21 Mar – 4 Apr
28 Apr
8-10 wk
30 May
23 Jun
0 wk
Common thyme
Thymus vulgaris
19 Mar – 2 Apr
3 May
8-10 wk
28 May
28 Jun
0 wk
Oregano
Origanum vulgare
2 – 16 Apr
17 May
6-8 wk
28 May
28 Jun
0 wk
22 Jun
4 wk after
Parsley
Petroselinum crispum
2 – 16 Apr
17 May
6-8 wk
28 May
28 Jun
0 wk
29 May
18 Jun
0 wk
Rosemary
Salvia rosmarinus
21 Feb – 21 Mar
30 Mar
10-14 wk
30 May
8 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
Season too short
6 – 13 May
12 May
3-4 wk
3 Jun
1 wk after
Cornflower
Centaurea cyanus
28 May
8 Jul
0 wk
29 May
28 Jun
0 wk
Statice
Limonium sinuatum
Fleece
25 Mar – 8 Apr
15 Apr
8-10 wk
3 Jun
10 Jun
1 wk after
Sweet William
Dianthus barbatus
2 – 16 Apr
6-8 wk
28 May
0 wk
7 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
8 – 22 Apr
29 Apr
6-8 wk
3 Jun
10 Jun
1 wk after
17 Jul
7 wk after
Pinnate dahlia
Dahlia × pinnata
Fleece
4 – 18 Apr
4 May
6-8 wk
30 May
15 Jun
0 wk
Pinnate dahlia (tubers)
Dahlia × pinnata
Greenhouse
8 Apr – 6 May
31 May
4-8 wk
3 Jun
28 Jun
1 wk after
3 Jun
18 Jun
1 wk after
Foxglove
Digitalis purpurea
19 Mar – 2 Apr
8-10 wk
28 May
0 wk
10 Jun
2 wk after
Busy lizzie
Impatiens walleriana
Fleece
18 Mar – 15 Apr
23 May
8-12 wk
10 Jun
18 Jul
2 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
8 – 22 Apr
9 May
6-8 wk
3 Jun
20 Jun
1 wk after
Hyacinth bean
Dolichos lablab
Season too short
29 Apr – 13 May
4-6 wk
10 Jun
2 wk after
Chinese lantern
Physalis alkekengi
21 Mar – 4 Apr
13 Apr
8-10 wk
30 May
8 Jun
0 wk
Love in a mist
Nigella damascena
28 May
23 Jun
0 wk
29 May
13 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Greenhouse
2 – 16 Apr
5 May
6-8 wk
28 May
16 Jun
0 wk
29 Jun
5 wk after
Purple-top vervain
Verbena bonariensis
7 Mar – 4 Apr
13 Apr
8-12 wk
30 May
8 Jun
0 wk
Cardoon
Cynara cardunculus
Fleece
11 Mar – 8 Apr
14 Mar
8-12 wk
3 Jun
1 wk after
Regal-foxtail
Ptilotus nobilis
Season too short
11 Mar – 8 Apr
28 Mar
8-12 wk
3 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Season too short
8 – 22 Apr
11 Apr
6-8 wk
3 Jun
1 wk after
Corn poppy
Papaver rhoeas
28 May
8 Jul
0 wk
29 May
28 Jun
0 wk
Snapdragon
Antirrhinum majus
5 Mar – 2 Apr
3 May
8-12 wk
28 May
28 Jun
0 wk
7 Jun
18 Jun
1 wk after
Flossflower
Ageratum houstonianum
Greenhouse
25 Mar – 8 Apr
11 May
8-10 wk
3 Jun
6 Jul
1 wk after
Sweet pea
Lathyrus odoratus
2 – 23 Apr
24 May
5-8 wk
28 May
28 Jun
0 wk
Stock
Matthiola incana
2 – 16 Apr
27 May
6-8 wk
28 May
8 Jul
0 wk
10 Jun
28 Jun
2 wk after
Wormwood
Artemisia absinthium
2 – 16 Apr
27 Apr
6-8 wk
28 May
8 Jun
0 wk
10 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
22 Apr – 6 May
4-6 wk
3 Jun
1 wk after
Garden pansy
Viola × wittrockiana
19 Mar – 2 Apr
13 May
8-10 wk
28 May
8 Jul
0 wk
7 Jun
28 Jun
1 wk after
Petunia
Petunia
Fleece
11 Mar – 8 Apr
15 Apr
8-12 wk
3 Jun
10 Jun
1 wk after
Sweet Scabious
Scabiosa atropurpurea
4 – 18 Apr
27 Apr
6-8 wk
30 May
8 Jun
0 wk
10 Jul
6 wk after
Common zinnia
Zinnia elegans
Greenhouse
16 – 30 Apr
28 May
4-6 wk
28 May
25 Jun
0 wk
Common morning glory
Ipomoea purpurea
Season too short
29 Apr – 13 May
12 May
3-5 wk
3 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
22 Apr – 6 May
18 May
4-6 wk
3 Jun
15 Jun
1 wk after
22 Jun
4 wk after
Scarlet milkweed
Asclepias curassavica
Season too short
18 Mar – 15 Apr
27 Apr
8-12 wk
10 Jun
22 Jun
2 wk after
Bee balm
Monarda didyma
5 Mar – 2 Apr
13 Apr
8-12 wk
28 May
8 Jun
0 wk
22 Jun
4 wk after
Yarrow
Achillea millefolium
2 – 16 Apr
6-8 wk
28 May
0 wk
10 Jun
2 wk after
Safflower
Carthamus tinctorius
28 May
8 Jun
0 wk
29 May
29 May
0 wk
Iceland poppy
Papaver nudicaule
Season too short
2 – 16 Apr
17 May
6-8 wk
28 May
28 Jun
0 wk
12 May
18 Jun
2 wk before
Bishop's flower
Ammi majus
16 – 30 Apr
31 May
4-6 wk
28 May
28 Jun
0 wk
10 Jun
18 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Season too short
11 – 25 Mar
17 Mar
10-12 wk
3 Jun
1 wk after
Sunflower
Helianthus annuus
13 – 20 May
7 Jun
3-4 wk
10 Jun
28 Jun
2 wk after
22 Jun
4 wk after
China aster
Callistephus chinensis
15 – 29 Apr
27 May
6-8 wk
10 Jun
8 Jul
2 wk after
10 Jul
6 wk after
Annual phlox
Phlox drummondii
Fleece
2 – 16 Apr
9 May
6-8 wk
28 May
20 Jun
0 wk
22 Jun
4 wk after
Hollyhock
Alcea rosea
2 – 16 Apr
6-8 wk
28 May
0 wk
10 Jun
2 wk after
Alpine delphinium
Delphinium elatum
5 Mar – 2 Apr
13 Apr
8-12 wk
28 May
8 Jun
0 wk
22 Jun
4 wk after
African marigold
Tagetes erecta
Fleece
8 – 22 Apr
9 May
6-8 wk
3 Jun
20 Jun
1 wk after
Black-eyed Susan
Rudbeckia hirta
4 – 18 Apr
17 May
6-8 wk
30 May
28 Jun
0 wk
10 Jul
6 wk after
Wood sage
Salvia nemorosa
19 Mar – 2 Apr
3 Apr
8-10 wk
28 May
29 May
0 wk
22 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Season too short
25 Mar – 22 Apr
21 Apr
6-10 wk
3 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
28 May
8 Jul
0 wk
29 May
28 Jun
0 wk
Painted tongue
Salpiglossis sinuata
1 – 15 Apr
3 May
8-10 wk
10 Jun
28 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
2 – 16 Apr
27 Apr
6-8 wk
28 May
8 Jun
0 wk
10 Jun
2 wk after