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Method
Rel. frost
Last spring frost (0°C) 4 Jun Frost 1 of 10 years · 20 years of data
Frost-free season 133 days 4 Jun – 15 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)
16 – 30 Apr
15 Jun
5-7 wk
4 Jun
20 Jul
0 wk
8 Jun
10 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
23 Apr – 7 May
27 Jun
4-6 wk
4 Jun
25 Jul
0 wk
8 Jun
15 Jul
1 wk after
Chili pepper
Capsicum annuum
Season too short
18 Mar – 15 Apr
8-12 wk
10 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
16 – 30 Apr
10 Jun
5-7 wk
4 Jun
15 Jul
0 wk
4 Jun
5 Jul
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
13 – 20 May
3-4 wk
10 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
1 – 8 Jun
7 Jun
4-5 wk
6 Jul
5 wk after
23 Jul
7 wk after
Butter bean
Phaseolus lunatus
Season too short
15 – 22 Jun
3-4 wk
13 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
12 Mar – 9 Apr
31 Mar
8-12 wk
4 Jun
0 wk
25 Jun
3 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
8 Jun
15 Jun
1 wk after
8 Jun
1 wk after
Maize
Zea mays
Greenhouse
7 – 14 May
3-4 wk
4 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
9 – 16 May
4 Jul
3-4 wk
6 Jun
25 Jul
0 wk
25 Jun
15 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
4 Jun
5 Jul
0 wk
4 Jun
25 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
16 – 30 Apr
10 Jun
5-7 wk
4 Jun
15 Jul
0 wk
4 Jun
5 Jul
0 wk
Potato
Solanum tuberosum
9 – 23 May
5 Jun
4-6 wk
20 Jun
3 Jul
2 wk after
20 Jun
23 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
16 – 30 Apr
20 Jun
5-7 wk
4 Jun
25 Jul
0 wk
8 Jun
15 Jul
1 wk after
Pumpkin
Cucurbita pepo
Fleece
20 – 27 May
3-4 wk
17 Jun
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
9 – 16 May
16 Jun
3-4 wk
6 Jun
7 Jul
0 wk
25 Jun
27 Jun
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
23 Apr – 7 May
22 Jun
4-6 wk
4 Jun
20 Jul
0 wk
Lettuce
Lactuca sativa
7 – 14 May
9 Jul
3-4 wk
4 Jun
30 Jul
0 wk
8 Jun
20 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
23 Apr – 7 May
22 Jun
4-6 wk
4 Jun
20 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
7 – 21 May
1 Jun
2-4 wk
4 Jun
15 Jun
0 wk
4 Jun
5 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
8 Jun
15 Jun
1 wk after
8 Jun
1 wk after
Spinach
Spinacia oleracea
7 – 14 May
24 Jul
3-4 wk
4 Jun
14 Aug
0 wk
31 May
4 Aug
1 wk before
Sweet potato
Ipomoea batatas
6 – 20 Jul
4-6 wk
17 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
9 – 23 Apr
11 Apr
6-8 wk
4 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
13 – 27 May
19 May
2-4 wk
10 Jun
1 wk after
9 Jul
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
23 Apr – 7 May
22 Jun
4-6 wk
4 Jun
20 Jul
0 wk
Garden pea
Pisum sativum
7 – 14 May
24 Jun
3-4 wk
4 Jun
15 Jul
0 wk
8 Jun
5 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
Fleece
6 – 20 May
4-6 wk
17 Jun
2 wk after
Lemon balm
Melissa officinalis
26 Mar – 9 Apr
20 May
8-10 wk
4 Jun
15 Jul
0 wk
9 Jul
5 wk after
Dill
Anethum graveolens
8 Jun
25 Jul
1 wk after
Wild chives
Allium schoenoprasum
9 – 23 Apr
3 Jun
6-8 wk
4 Jun
15 Jul
0 wk
8 Jun
5 Jul
1 wk after
Spearmint
Mentha spicata
12 Mar – 9 Apr
20 May
8-12 wk
4 Jun
15 Jul
0 wk
9 Jul
5 wk after
Coriander
Coriandrum sativum
4 Jun
14 Aug
0 wk
25 Jun
4 Aug
3 wk after
Garden sage
Salvia officinalis
28 Mar – 11 Apr
5 May
8-10 wk
6 Jun
30 Jun
0 wk
Common thyme
Thymus vulgaris
26 Mar – 9 Apr
10 May
8-10 wk
4 Jun
5 Jul
0 wk
Oregano
Origanum vulgare
9 – 23 Apr
24 May
6-8 wk
4 Jun
5 Jul
0 wk
9 Jul
5 wk after
Parsley
Petroselinum crispum
9 – 23 Apr
24 May
6-8 wk
4 Jun
5 Jul
0 wk
8 Jun
25 Jun
1 wk after
Rosemary
Salvia rosmarinus
28 Feb – 28 Mar
6 Apr
10-14 wk
6 Jun
15 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
20 – 27 May
3-4 wk
17 Jun
2 wk after
Cornflower
Centaurea cyanus
4 Jun
15 Jul
0 wk
8 Jun
5 Jul
1 wk after
Statice
Limonium sinuatum
8 – 22 Apr
8-10 wk
17 Jun
2 wk after
Sweet William
Dianthus barbatus
9 – 23 Apr
6-8 wk
4 Jun
0 wk
20 Jun
2 wk after
Snow-on-the-mountain
Euphorbia marginata
22 Apr – 6 May
6-8 wk
17 Jun
2 wk after
17 Aug
11 wk after
Pinnate dahlia
Dahlia × pinnata
20 Apr – 4 May
20 Apr
6-8 wk
15 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
14 May – 11 Jun
4-8 wk
9 Jul
5 wk after
9 Jul
5 wk after
Foxglove
Digitalis purpurea
26 Mar – 9 Apr
8-10 wk
4 Jun
0 wk
25 Jun
3 wk after
Busy lizzie
Impatiens walleriana
13 Apr – 11 May
13 May
8-12 wk
6 Jul
8 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
22 Apr – 6 May
24 Apr
6-8 wk
17 Jun
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
6 – 20 May
4-6 wk
17 Jun
2 wk after
Chinese lantern
Physalis alkekengi
28 Mar – 11 Apr
20 Apr
8-10 wk
6 Jun
15 Jun
0 wk
Love in a mist
Nigella damascena
4 Jun
30 Jun
0 wk
8 Jun
20 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
Fleece
15 – 29 Apr
19 Apr
6-8 wk
10 Jun
1 wk after
2 Aug
8 wk after
Purple-top vervain
Verbena bonariensis
14 Mar – 11 Apr
20 Apr
8-12 wk
6 Jun
15 Jun
0 wk
Cardoon
Cynara cardunculus
25 Mar – 22 Apr
8-12 wk
17 Jun
2 wk after
Regal-foxtail
Ptilotus nobilis
Greenhouse
18 Mar – 15 Apr
6 Apr
8-12 wk
10 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
15 – 29 Apr
20 Apr
6-8 wk
10 Jun
1 wk after
Corn poppy
Papaver rhoeas
4 Jun
15 Jul
0 wk
8 Jun
5 Jul
1 wk after
Snapdragon
Antirrhinum majus
12 Mar – 9 Apr
10 May
8-12 wk
4 Jun
5 Jul
0 wk
20 Jun
25 Jun
2 wk after
Flossflower
Ageratum houstonianum
27 Apr – 11 May
8-10 wk
6 Jul
5 wk after
Sweet pea
Lathyrus odoratus
9 – 30 Apr
31 May
5-8 wk
4 Jun
5 Jul
0 wk
Stock
Matthiola incana
9 – 23 Apr
3 Jun
6-8 wk
4 Jun
15 Jul
0 wk
25 Jun
5 Jul
3 wk after
Wormwood
Artemisia absinthium
9 – 23 Apr
4 May
6-8 wk
4 Jun
15 Jun
0 wk
25 Jun
3 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
29 Apr – 13 May
29 Apr
4-6 wk
10 Jun
1 wk after
Garden pansy
Viola × wittrockiana
26 Mar – 9 Apr
20 May
8-10 wk
4 Jun
15 Jul
0 wk
20 Jun
5 Jul
2 wk after
Petunia
Petunia
25 Mar – 22 Apr
31 Mar
8-12 wk
17 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
11 – 25 Apr
4 May
6-8 wk
6 Jun
15 Jun
0 wk
23 Jul
7 wk after
Common zinnia
Zinnia elegans
6 – 20 May
4-6 wk
17 Jun
2 wk after
Common morning glory
Ipomoea purpurea
Fleece
13 – 27 May
3-5 wk
17 Jun
2 wk after
Garden cosmos
Cosmos bipinnatus
6 – 20 May
4-6 wk
17 Jun
2 wk after
23 Jul
7 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
13 Apr – 11 May
17 Apr
8-12 wk
6 Jul
5 wk after
Bee balm
Monarda didyma
12 Mar – 9 Apr
20 Apr
8-12 wk
4 Jun
15 Jun
0 wk
9 Jul
5 wk after
Yarrow
Achillea millefolium
9 – 23 Apr
6-8 wk
4 Jun
0 wk
25 Jun
3 wk after
Safflower
Carthamus tinctorius
4 Jun
15 Jun
0 wk
8 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
9 – 23 Apr
24 May
6-8 wk
4 Jun
5 Jul
0 wk
17 May
25 Jun
3 wk before
Bishop's flower
Ammi majus
23 Apr – 7 May
7 Jun
4-6 wk
4 Jun
5 Jul
0 wk
25 Jun
25 Jun
3 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
18 Mar – 1 Apr
20 Mar
10-12 wk
10 Jun
1 wk after
Sunflower
Helianthus annuus
20 – 27 May
14 Jun
3-4 wk
17 Jun
5 Jul
2 wk after
9 Jul
5 wk after
China aster
Callistephus chinensis
22 Apr – 6 May
3 Jun
6-8 wk
17 Jun
15 Jul
2 wk after
23 Jul
7 wk after
Annual phlox
Phlox drummondii
15 – 29 Apr
24 Apr
6-8 wk
10 Jun
1 wk after
23 Jul
7 wk after
Hollyhock
Alcea rosea
9 – 23 Apr
6-8 wk
4 Jun
0 wk
25 Jun
3 wk after
Alpine delphinium
Delphinium elatum
12 Mar – 9 Apr
20 Apr
8-12 wk
4 Jun
15 Jun
0 wk
9 Jul
5 wk after
African marigold
Tagetes erecta
22 Apr – 6 May
24 Apr
6-8 wk
17 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
11 – 25 Apr
24 May
6-8 wk
6 Jun
5 Jul
0 wk
23 Jul
7 wk after
Wood sage
Salvia nemorosa
26 Mar – 9 Apr
10 Apr
8-10 wk
4 Jun
5 Jun
0 wk
9 Jul
5 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
8 Apr – 6 May
11 Apr
6-10 wk
17 Jun
2 wk after
California goldenpoppy
Eschscholzia californica
4 Jun
15 Jul
0 wk
8 Jun
5 Jul
1 wk after
Painted tongue
Salpiglossis sinuata
8 – 22 Apr
10 May
8-10 wk
17 Jun
5 Jul
2 wk after
Water forget-me-not
Myosotis scorpioides
9 – 23 Apr
4 May
6-8 wk
4 Jun
15 Jun
0 wk
25 Jun
3 wk after