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Method
Rel. frost
Last spring frost (0°C) 24 May Normal year · 20 years of data
Frost-free season 120 days 24 May – 21 Sep
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)
5 – 19 Apr
16 Jun
5-7 wk
24 May
21 Jul
0 wk
28 May
11 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
12 – 26 Apr
28 Jun
4-6 wk
24 May
26 Jul
0 wk
28 May
16 Jul
1 wk after
Chili pepper
Capsicum annuum
Greenhouse
16 Mar – 13 Apr
16 Apr
8-12 wk
8 Jun
11 Jun
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
5 – 19 Apr
11 Jun
5-7 wk
24 May
16 Jul
0 wk
24 May
6 Jul
0 wk
Garden cucumber
Cucumis sativus
Fleece
23 – 30 May
10 Jun
3-4 wk
20 Jun
1 Jul
4 wk after
Florence Fennel
Foeniculum vulgare
1 – 8 Jun
4-5 wk
6 Jul
6 wk after
12 Jul
7 wk after
Butter bean
Phaseolus lunatus
Season too short
13 – 20 Jun
3-4 wk
11 Jul
7 wk after
Onion
Allium cepa (Cepa-gruppen)
1 – 29 Mar
28 Mar
8-12 wk
24 May
0 wk
14 Jun
3 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
28 May
12 Jun
1 wk after
28 May
2 Jun
1 wk after
Maize
Zea mays
Fleece
11 – 18 May
31 May
3-4 wk
8 Jun
21 Jun
2 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
4 – 11 May
29 Jun
3-4 wk
1 Jun
20 Jul
1 wk after
14 Jun
10 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
24 May
6 Jul
0 wk
24 May
26 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
5 – 19 Apr
11 Jun
5-7 wk
24 May
16 Jul
0 wk
24 May
6 Jul
0 wk
Potato
Solanum tuberosum
28 Apr – 12 May
28 May
4-6 wk
9 Jun
25 Jun
2 wk after
9 Jun
15 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
5 – 19 Apr
21 Jun
5-7 wk
24 May
26 Jul
0 wk
28 May
16 Jul
1 wk after
Pumpkin
Cucurbita pepo
8 – 15 Jun
15 Jun
3-4 wk
6 Jul
6 Jul
6 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
4 – 11 May
10 Jun
3-4 wk
1 Jun
1 Jul
1 wk after
14 Jun
21 Jun
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
12 – 26 Apr
23 Jun
4-6 wk
24 May
21 Jul
0 wk
Lettuce
Lactuca sativa
26 Apr – 3 May
10 Jul
3-4 wk
24 May
31 Jul
0 wk
28 May
21 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
12 – 26 Apr
23 Jun
4-6 wk
24 May
21 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
26 Apr – 10 May
2 Jun
2-4 wk
24 May
16 Jun
0 wk
24 May
6 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
28 May
12 Jun
1 wk after
28 May
2 Jun
1 wk after
Spinach
Spinacia oleracea
26 Apr – 3 May
25 Jul
3-4 wk
24 May
15 Aug
0 wk
20 May
5 Aug
1 wk before
Sweet potato
Ipomoea batatas
25 Jun – 9 Jul
4-6 wk
6 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Fleece
13 – 27 Apr
10 May
6-8 wk
8 Jun
21 Jun
2 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
23 May – 6 Jun
17 Jun
2-4 wk
20 Jun
1 Jul
4 wk after
12 Jul
7 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
12 – 26 Apr
23 Jun
4-6 wk
24 May
21 Jul
0 wk
Garden pea
Pisum sativum
26 Apr – 3 May
25 Jun
3-4 wk
24 May
16 Jul
0 wk
28 May
6 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
25 May – 8 Jun
4-6 wk
6 Jul
6 wk after
Lemon balm
Melissa officinalis
15 – 29 Mar
21 May
8-10 wk
24 May
16 Jul
0 wk
28 Jun
6 Jul
5 wk after
Dill
Anethum graveolens
28 May
20 Jul
1 wk after
Wild chives
Allium schoenoprasum
29 Mar – 12 Apr
4 Jun
6-8 wk
24 May
16 Jul
0 wk
28 May
6 Jul
1 wk after
Spearmint
Mentha spicata
1 – 29 Mar
21 May
8-12 wk
24 May
16 Jul
0 wk
28 Jun
6 Jul
5 wk after
Coriander
Coriandrum sativum
24 May
9 Aug
0 wk
14 Jun
30 Jul
3 wk after
Garden sage
Salvia officinalis
23 Mar – 6 Apr
6 May
8-10 wk
1 Jun
1 Jul
1 wk after
Common thyme
Thymus vulgaris
15 – 29 Mar
11 May
8-10 wk
24 May
6 Jul
0 wk
Oregano
Origanum vulgare
29 Mar – 12 Apr
25 May
6-8 wk
24 May
6 Jul
0 wk
28 Jun
5 wk after
Parsley
Petroselinum crispum
29 Mar – 12 Apr
25 May
6-8 wk
24 May
6 Jul
0 wk
28 May
26 Jun
1 wk after
Rosemary
Salvia rosmarinus
23 Feb – 23 Mar
30 Mar
10-14 wk
1 Jun
8 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
8 – 15 Jun
3-4 wk
6 Jul
6 wk after
Cornflower
Centaurea cyanus
24 May
16 Jul
0 wk
28 May
6 Jul
1 wk after
Statice
Limonium sinuatum
11 – 25 Apr
29 Apr
8-10 wk
20 Jun
24 Jun
4 wk after
Sweet William
Dianthus barbatus
29 Mar – 12 Apr
6-8 wk
24 May
0 wk
9 Jun
2 wk after
Snow-on-the-mountain
Euphorbia marginata
25 Apr – 9 May
13 May
6-8 wk
20 Jun
24 Jun
4 wk after
6 Aug
11 wk after
Pinnate dahlia
Dahlia × pinnata
17 Apr – 1 May
16 May
6-8 wk
12 Jun
27 Jun
3 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
3 – 31 May
30 May
4-8 wk
28 Jun
5 wk after
28 Jun
5 wk after
Foxglove
Digitalis purpurea
15 – 29 Mar
8-10 wk
24 May
0 wk
14 Jun
3 wk after
Busy lizzie
Impatiens walleriana
13 Apr – 11 May
18 Jun
8-12 wk
6 Jul
13 Aug
6 wk after
Creeping zinnia
Sanvitalia procumbens
25 Apr – 9 May
23 May
6-8 wk
20 Jun
4 Jul
4 wk after
Hyacinth bean
Dolichos lablab
Season too short
9 – 23 May
4-6 wk
20 Jun
4 wk after
Chinese lantern
Physalis alkekengi
23 Mar – 6 Apr
15 Apr
8-10 wk
1 Jun
10 Jun
1 wk after
Love in a mist
Nigella damascena
24 May
1 Jul
0 wk
28 May
21 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
25 Apr – 9 May
3 May
6-8 wk
20 Jun
4 wk after
6 Aug
11 wk after
Purple-top vervain
Verbena bonariensis
9 Mar – 6 Apr
15 Apr
8-12 wk
1 Jun
10 Jun
1 wk after
Cardoon
Cynara cardunculus
Fleece
16 Mar – 13 Apr
22 Mar
8-12 wk
8 Jun
2 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
28 Mar – 25 Apr
23 Apr
8-12 wk
20 Jun
4 wk after
Globe amaranth
Gomphrena globosa
Fleece
25 Apr – 9 May
7 May
6-8 wk
20 Jun
4 wk after
Corn poppy
Papaver rhoeas
24 May
16 Jul
0 wk
28 May
6 Jul
1 wk after
Snapdragon
Antirrhinum majus
1 – 29 Mar
11 May
8-12 wk
24 May
6 Jul
0 wk
9 Jun
26 Jun
2 wk after
Flossflower
Ageratum houstonianum
27 Apr – 11 May
9 May
8-10 wk
6 Jul
6 wk after
Sweet pea
Lathyrus odoratus
29 Mar – 19 Apr
1 Jun
5-8 wk
24 May
6 Jul
0 wk
Stock
Matthiola incana
29 Mar – 12 Apr
4 Jun
6-8 wk
24 May
16 Jul
0 wk
14 Jun
6 Jul
3 wk after
Wormwood
Artemisia absinthium
29 Mar – 12 Apr
5 May
6-8 wk
24 May
16 Jun
0 wk
14 Jun
3 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
9 – 23 May
16 May
4-6 wk
20 Jun
4 wk after
Garden pansy
Viola × wittrockiana
15 – 29 Mar
21 May
8-10 wk
24 May
16 Jul
0 wk
9 Jun
6 Jul
2 wk after
Petunia
Petunia
28 Mar – 25 Apr
29 Apr
8-12 wk
20 Jun
24 Jun
4 wk after
Sweet Scabious
Scabiosa atropurpurea
6 – 20 Apr
29 Apr
6-8 wk
1 Jun
10 Jun
1 wk after
12 Jul
7 wk after
Common zinnia
Zinnia elegans
9 – 23 May
31 May
4-6 wk
20 Jun
28 Jun
4 wk after
Common morning glory
Ipomoea purpurea
1 – 15 Jun
3-5 wk
6 Jul
6 wk after
Garden cosmos
Cosmos bipinnatus
9 – 23 May
30 May
4-6 wk
20 Jun
27 Jun
4 wk after
12 Jul
7 wk after
Scarlet milkweed
Asclepias curassavica
23 Apr – 21 May
16 May
8-12 wk
16 Jul
8 wk after
Bee balm
Monarda didyma
1 – 29 Mar
21 Apr
8-12 wk
24 May
16 Jun
0 wk
28 Jun
5 wk after
Yarrow
Achillea millefolium
29 Mar – 12 Apr
5 Apr
6-8 wk
24 May
0 wk
14 Jun
3 wk after
Safflower
Carthamus tinctorius
24 May
16 Jun
0 wk
28 May
6 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
29 Mar – 12 Apr
25 May
6-8 wk
24 May
6 Jul
0 wk
6 May
26 Jun
3 wk before
Bishop's flower
Ammi majus
12 – 26 Apr
8 Jun
4-6 wk
24 May
6 Jul
0 wk
14 Jun
26 Jun
3 wk after
Drumsticks
Pycnosorus globosus
Fleece
28 Mar – 11 Apr
29 Mar
10-12 wk
20 Jun
4 wk after
Sunflower
Helianthus annuus
23 – 30 May
7 Jun
3-4 wk
20 Jun
28 Jun
4 wk after
28 Jun
5 wk after
China aster
Callistephus chinensis
25 Apr – 9 May
27 May
6-8 wk
20 Jun
8 Jul
4 wk after
12 Jul
7 wk after
Annual phlox
Phlox drummondii
13 – 27 Apr
23 May
6-8 wk
8 Jun
4 Jul
2 wk after
12 Jul
7 wk after
Hollyhock
Alcea rosea
29 Mar – 12 Apr
6-8 wk
24 May
0 wk
14 Jun
3 wk after
Alpine delphinium
Delphinium elatum
1 – 29 Mar
21 Apr
8-12 wk
24 May
16 Jun
0 wk
28 Jun
5 wk after
African marigold
Tagetes erecta
25 Apr – 9 May
23 May
6-8 wk
20 Jun
4 Jul
4 wk after
Black-eyed Susan
Rudbeckia hirta
6 – 20 Apr
17 May
6-8 wk
1 Jun
28 Jun
1 wk after
12 Jul
7 wk after
Wood sage
Salvia nemorosa
15 – 29 Mar
11 Apr
8-10 wk
24 May
6 Jun
0 wk
28 Jun
5 wk after
Black-eyed susan vine
Thunbergia alata
27 Apr – 25 May
10 May
6-10 wk
6 Jul
6 wk after
California goldenpoppy
Eschscholzia californica
24 May
16 Jul
0 wk
28 May
6 Jul
1 wk after
Painted tongue
Salpiglossis sinuata
11 – 25 Apr
28 Apr
8-10 wk
20 Jun
23 Jun
4 wk after
Water forget-me-not
Myosotis scorpioides
29 Mar – 12 Apr
5 May
6-8 wk
24 May
16 Jun
0 wk
14 Jun
3 wk after