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Rel. frost
Last spring frost (0°C) 29 May Frost 9 of 10 years · 20 years of data
Frost-free season 110 days 29 May – 16 Sep
Probability that frost is over

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