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Method
Rel. frost
Last spring frost (0°C) 14 May Normal year · 20 years of data
Frost-free season 132 days 14 May – 23 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)
26 Mar – 9 Apr
12 Jun
5-7 wk
14 May
17 Jul
0 wk
15 May
7 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
2 – 16 Apr
24 Jun
4-6 wk
14 May
22 Jul
0 wk
15 May
12 Jul
0 wk
Chili pepper
Capsicum annuum
Greenhouse
1 – 29 Mar
16 Apr
8-12 wk
24 May
11 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
26 Mar – 9 Apr
7 Jun
5-7 wk
14 May
12 Jul
0 wk
14 May
2 Jul
0 wk
Garden cucumber
Cucumis sativus
22 – 29 May
26 May
3-4 wk
19 Jun
5 wk after
Florence Fennel
Foeniculum vulgare
15 – 22 May
27 May
4-5 wk
19 Jun
24 Jun
5 wk after
26 Jun
6 wk after
Butter bean
Phaseolus lunatus
Season too short
27 May – 3 Jun
3-4 wk
24 Jun
6 wk after
Onion
Allium cepa (Cepa-gruppen)
19 Feb – 19 Mar
26 Mar
8-12 wk
14 May
21 May
0 wk
27 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
15 May
10 Jun
0 wk
15 May
31 May
0 wk
Maize
Zea mays
6 – 13 May
16 May
3-4 wk
3 Jun
6 Jun
3 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
21 – 28 Apr
1 Jul
3-4 wk
19 May
22 Jul
1 wk after
27 May
12 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
14 May
2 Jul
0 wk
14 May
22 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
26 Mar – 9 Apr
7 Jun
5-7 wk
14 May
12 Jul
0 wk
14 May
2 Jul
0 wk
Potato
Solanum tuberosum
12 – 26 Apr
26 May
4-6 wk
24 May
23 Jun
1 wk after
24 May
13 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
26 Mar – 9 Apr
17 Jun
5-7 wk
14 May
22 Jul
0 wk
15 May
12 Jul
0 wk
Pumpkin
Cucurbita pepo
22 – 29 May
15 Jun
3-4 wk
19 Jun
6 Jul
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
21 – 28 Apr
9 Jun
3-4 wk
19 May
30 Jun
1 wk after
27 May
20 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
2 – 16 Apr
19 Jun
4-6 wk
14 May
17 Jul
0 wk
Lettuce
Lactuca sativa
16 – 23 Apr
6 Jul
3-4 wk
14 May
27 Jul
0 wk
15 May
17 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
2 – 16 Apr
19 Jun
4-6 wk
14 May
17 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
16 – 30 Apr
29 May
2-4 wk
14 May
12 Jun
0 wk
14 May
2 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
15 May
10 Jun
0 wk
15 May
31 May
0 wk
Spinach
Spinacia oleracea
16 – 23 Apr
21 Jul
3-4 wk
14 May
11 Aug
0 wk
11 May
1 Aug
0 wk
Sweet potato
Ipomoea batatas
8 – 22 Jun
4-6 wk
20 Jul
10 wk after
Garden tomato
Solanum lycopersicum
8 – 22 Apr
25 Apr
6-8 wk
3 Jun
6 Jun
3 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
6 – 20 May
17 Jun
2-4 wk
3 Jun
1 Jul
3 wk after
26 Jun
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
2 – 16 Apr
19 Jun
4-6 wk
14 May
17 Jul
0 wk
Garden pea
Pisum sativum
16 – 23 Apr
21 Jun
3-4 wk
14 May
12 Jul
0 wk
15 May
2 Jul
0 wk

Herbs

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