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-0.2°
Slight frost tonight at 02:00. Frost temperatures between tomorrow 02:00 – 03:00. Bring in or cover sensitive plants
Method
Rel. frost
Last spring frost (0°C) 18 May Frost 3 of 4 years · 20 years of data
Frost-free season 112 days 18 May – 7 Sep
Probability that frost is over

25% = 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)
30 Mar – 13 Apr
15 Jun
5-7 wk
18 May
20 Jul
0 wk
22 May
10 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
6 – 20 Apr
27 Jun
4-6 wk
18 May
25 Jul
0 wk
22 May
15 Jul
1 wk after
Chili pepper
Capsicum annuum
Season too short
10 Mar – 7 Apr
8-12 wk
2 Jun
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
30 Mar – 13 Apr
10 Jun
5-7 wk
18 May
15 Jul
0 wk
18 May
5 Jul
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
5 – 12 May
20 May
3-4 wk
2 Jun
10 Jun
2 wk after
Florence Fennel
Foeniculum vulgare
Fleece
10 – 17 May
27 May
4-5 wk
14 Jun
24 Jun
4 wk after
22 Jun
5 wk after
Butter bean
Phaseolus lunatus
Season too short
7 – 14 Jun
3-4 wk
5 Jul
7 wk after
Onion
Allium cepa (Cepa-gruppen)
23 Feb – 23 Mar
10 Mar
8-12 wk
18 May
0 wk
8 Jun
3 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
22 May
25 May
1 wk after
22 May
1 wk after
Maize
Zea mays
Greenhouse
21 – 28 Apr
10 May
3-4 wk
19 May
31 May
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
28 Apr – 5 May
23 Jun
3-4 wk
26 May
14 Jul
1 wk after
8 Jun
4 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
18 May
5 Jul
0 wk
18 May
25 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
30 Mar – 13 Apr
10 Jun
5-7 wk
18 May
15 Jul
0 wk
18 May
5 Jul
0 wk
Potato
Solanum tuberosum
22 Apr – 6 May
7 May
4-6 wk
3 Jun
4 Jun
2 wk after
3 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
30 Mar – 13 Apr
20 Jun
5-7 wk
18 May
25 Jul
0 wk
22 May
15 Jul
1 wk after
Pumpkin
Cucurbita pepo
Fleece
17 – 24 May
25 May
3-4 wk
14 Jun
15 Jun
4 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
28 Apr – 5 May
4 May
3-4 wk
26 May
1 wk after
8 Jun
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
6 – 20 Apr
22 Jun
4-6 wk
18 May
20 Jul
0 wk
Lettuce
Lactuca sativa
20 – 27 Apr
9 Jul
3-4 wk
18 May
30 Jul
0 wk
22 May
20 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
6 – 20 Apr
22 Jun
4-6 wk
18 May
20 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
20 Apr – 4 May
16 May
2-4 wk
18 May
30 May
0 wk
18 May
20 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
22 May
25 May
1 wk after
22 May
1 wk after
Spinach
Spinacia oleracea
20 – 27 Apr
24 Jul
3-4 wk
18 May
14 Aug
0 wk
14 May
4 Aug
1 wk before
Sweet potato
Ipomoea batatas
19 Jun – 3 Jul
4-6 wk
31 Jul
11 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
24 Mar – 7 Apr
19 Apr
6-8 wk
19 May
31 May
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
5 – 19 May
27 May
2-4 wk
2 Jun
10 Jun
2 wk after
22 Jun
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
6 – 20 Apr
22 Jun
4-6 wk
18 May
20 Jul
0 wk
Garden pea
Pisum sativum
20 – 27 Apr
24 Jun
3-4 wk
18 May
15 Jul
0 wk
22 May
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
Greenhouse
21 Apr – 5 May
27 May
4-6 wk
2 Jun
24 Jun
2 wk after
Lemon balm
Melissa officinalis
9 – 23 Mar
20 May
8-10 wk
18 May
15 Jul
0 wk
22 Jun
5 Jul
5 wk after
Dill
Anethum graveolens
22 May
14 Jul
1 wk after
Wild chives
Allium schoenoprasum
23 Mar – 6 Apr
3 Jun
6-8 wk
18 May
15 Jul
0 wk
22 May
5 Jul
1 wk after
Spearmint
Mentha spicata
23 Feb – 23 Mar
20 May
8-12 wk
18 May
15 Jul
0 wk
22 Jun
5 Jul
5 wk after
Coriander
Coriandrum sativum
18 May
3 Aug
0 wk
8 Jun
24 Jul
3 wk after
Garden sage
Salvia officinalis
17 – 31 Mar
5 May
8-10 wk
26 May
30 Jun
1 wk after
Common thyme
Thymus vulgaris
9 – 23 Mar
10 May
8-10 wk
18 May
5 Jul
0 wk
Oregano
Origanum vulgare
23 Mar – 6 Apr
24 May
6-8 wk
18 May
5 Jul
0 wk
22 Jun
25 Jun
5 wk after
Parsley
Petroselinum crispum
23 Mar – 6 Apr
24 May
6-8 wk
18 May
5 Jul
0 wk
22 May
25 Jun
1 wk after
Rosemary
Salvia rosmarinus
17 Feb – 17 Mar
26 Mar
10-14 wk
26 May
4 Jun
1 wk after

Annual flowers

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Morning glory
Ipomoea tricolor
Greenhouse
5 – 12 May
3 Jun
3-4 wk
2 Jun
24 Jun
2 wk after
Cornflower
Centaurea cyanus
18 May
15 Jul
0 wk
22 May
5 Jul
1 wk after
Statice
Limonium sinuatum
5 – 19 Apr
15 Apr
8-10 wk
14 Jun
4 wk after
Sweet William
Dianthus barbatus
23 Mar – 6 Apr
6-8 wk
18 May
0 wk
3 Jun
2 wk after
Snow-on-the-mountain
Euphorbia marginata
19 Apr – 3 May
29 Apr
6-8 wk
14 Jun
4 wk after
31 Jul
11 wk after
Pinnate dahlia
Dahlia × pinnata
11 – 25 Apr
3 May
6-8 wk
6 Jun
14 Jun
3 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
27 Apr – 25 May
17 May
4-8 wk
22 Jun
5 wk after
22 Jun
5 wk after
Foxglove
Digitalis purpurea
9 – 23 Mar
8-10 wk
18 May
0 wk
8 Jun
3 wk after
Busy lizzie
Impatiens walleriana
7 Apr – 5 May
21 May
8-12 wk
30 Jun
16 Jul
6 wk after
Creeping zinnia
Sanvitalia procumbens
19 Apr – 3 May
9 May
6-8 wk
14 Jun
20 Jun
4 wk after
Hyacinth bean
Dolichos lablab
Season too short
3 – 17 May
4-6 wk
14 Jun
4 wk after
Chinese lantern
Physalis alkekengi
17 – 31 Mar
9 Apr
8-10 wk
26 May
4 Jun
1 wk after
Love in a mist
Nigella damascena
18 May
30 Jun
0 wk
22 May
20 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
Fleece
7 – 21 Apr
26 Apr
6-8 wk
2 Jun
7 Jun
2 wk after
16 Jul
8 wk after
Purple-top vervain
Verbena bonariensis
3 – 31 Mar
9 Apr
8-12 wk
26 May
4 Jun
1 wk after
Cardoon
Cynara cardunculus
Greenhouse
24 Feb – 24 Mar
21 Mar
8-12 wk
19 May
0 wk
Regal-foxtail
Ptilotus nobilis
Greenhouse
10 Mar – 7 Apr
19 Apr
8-12 wk
2 Jun
14 Jun
2 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
7 – 21 Apr
3 May
6-8 wk
2 Jun
14 Jun
2 wk after
Corn poppy
Papaver rhoeas
18 May
15 Jul
0 wk
22 May
5 Jul
1 wk after
Snapdragon
Antirrhinum majus
23 Feb – 23 Mar
10 May
8-12 wk
18 May
5 Jul
0 wk
3 Jun
25 Jun
2 wk after
Flossflower
Ageratum houstonianum
Fleece
5 – 19 Apr
2 May
8-10 wk
14 Jun
27 Jun
4 wk after
Sweet pea
Lathyrus odoratus
23 Mar – 13 Apr
31 May
5-8 wk
18 May
5 Jul
0 wk
Stock
Matthiola incana
23 Mar – 6 Apr
3 Jun
6-8 wk
18 May
15 Jul
0 wk
8 Jun
5 Jul
3 wk after
Wormwood
Artemisia absinthium
23 Mar – 6 Apr
4 May
6-8 wk
18 May
15 Jun
0 wk
8 Jun
3 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
21 Apr – 5 May
12 May
4-6 wk
2 Jun
9 Jun
2 wk after
Garden pansy
Viola × wittrockiana
9 – 23 Mar
20 May
8-10 wk
18 May
15 Jul
0 wk
3 Jun
5 Jul
2 wk after
Petunia
Petunia
22 Mar – 19 Apr
15 Apr
8-12 wk
14 Jun
4 wk after
Sweet Scabious
Scabiosa atropurpurea
31 Mar – 14 Apr
23 Apr
6-8 wk
26 May
4 Jun
1 wk after
6 Jul
7 wk after
Common zinnia
Zinnia elegans
Fleece
21 Apr – 5 May
27 May
4-6 wk
2 Jun
24 Jun
2 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
28 Apr – 12 May
3 Jun
3-5 wk
2 Jun
24 Jun
2 wk after
Garden cosmos
Cosmos bipinnatus
3 – 17 May
17 May
4-6 wk
14 Jun
14 Jun
4 wk after
6 Jul
7 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
22 Mar – 19 Apr
19 May
8-12 wk
14 Jun
14 Jul
4 wk after
Bee balm
Monarda didyma
23 Feb – 23 Mar
20 Apr
8-12 wk
18 May
15 Jun
0 wk
22 Jun
5 wk after
Yarrow
Achillea millefolium
23 Mar – 6 Apr
4 Apr
6-8 wk
18 May
0 wk
8 Jun
3 wk after
Safflower
Carthamus tinctorius
18 May
15 Jun
0 wk
22 May
5 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
23 Mar – 6 Apr
24 May
6-8 wk
18 May
5 Jul
0 wk
30 Apr
25 Jun
3 wk before
Bishop's flower
Ammi majus
6 – 20 Apr
7 Jun
4-6 wk
18 May
5 Jul
0 wk
8 Jun
25 Jun
3 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
10 – 24 Mar
21 Mar
10-12 wk
2 Jun
2 wk after
Sunflower
Helianthus annuus
17 – 24 May
3 Jun
3-4 wk
14 Jun
24 Jun
4 wk after
22 Jun
5 wk after
China aster
Callistephus chinensis
19 Apr – 3 May
23 May
6-8 wk
14 Jun
4 Jul
4 wk after
6 Jul
7 wk after
Annual phlox
Phlox drummondii
7 – 21 Apr
9 May
6-8 wk
2 Jun
20 Jun
2 wk after
6 Jul
7 wk after
Hollyhock
Alcea rosea
23 Mar – 6 Apr
6-8 wk
18 May
0 wk
8 Jun
3 wk after
Alpine delphinium
Delphinium elatum
23 Feb – 23 Mar
20 Apr
8-12 wk
18 May
15 Jun
0 wk
22 Jun
5 wk after
African marigold
Tagetes erecta
19 Apr – 3 May
9 May
6-8 wk
14 Jun
20 Jun
4 wk after
Black-eyed Susan
Rudbeckia hirta
31 Mar – 14 Apr
13 May
6-8 wk
26 May
24 Jun
1 wk after
6 Jul
7 wk after
Wood sage
Salvia nemorosa
9 – 23 Mar
10 Apr
8-10 wk
18 May
5 Jun
0 wk
22 Jun
5 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
24 Mar – 21 Apr
13 May
6-10 wk
2 Jun
24 Jun
2 wk after
California goldenpoppy
Eschscholzia californica
18 May
8 Jul
0 wk
22 May
28 Jun
1 wk after
Painted tongue
Salpiglossis sinuata
5 – 19 Apr
9 Apr
8-10 wk
14 Jun
4 wk after
Water forget-me-not
Myosotis scorpioides
23 Mar – 6 Apr
4 May
6-8 wk
18 May
15 Jun
0 wk
8 Jun
3 wk after