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Method
Rel. frost
Last spring frost (0°C) 14 May Normal year · 20 years of data
Frost-free season 139 days 14 May – 30 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
18 Jun
5-7 wk
14 May
23 Jul
0 wk
7 May
13 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
2 – 16 Apr
30 Jun
4-6 wk
14 May
28 Jul
0 wk
7 May
18 Jul
1 wk before
Chili pepper
Capsicum annuum
Fleece
11 Mar – 8 Apr
13 Apr
8-12 wk
3 Jun
8 Jun
3 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
26 Mar – 9 Apr
13 Jun
5-7 wk
14 May
18 Jul
0 wk
2 May
8 Jul
2 wk before
Garden cucumber
Cucumis sativus
22 – 29 May
7 Jun
3-4 wk
19 Jun
28 Jun
5 wk after
Florence Fennel
Foeniculum vulgare
15 – 22 May
7 Jun
4-5 wk
19 Jun
5 Jul
5 wk after
19 Jun
25 Jun
5 wk after
Butter bean
Phaseolus lunatus
Greenhouse
27 May – 3 Jun
28 May
3-4 wk
24 Jun
6 wk after
Onion
Allium cepa (Cepa-gruppen)
19 Feb – 19 Mar
3 Apr
8-12 wk
14 May
29 May
0 wk
24 May
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
7 May
18 Jun
1 wk before
7 May
8 Jun
1 wk before
Maize
Zea mays
6 – 13 May
28 May
3-4 wk
3 Jun
18 Jun
3 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
21 – 28 Apr
7 Jul
3-4 wk
19 May
28 Jul
1 wk after
24 May
18 Jul
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
14 May
8 Jul
0 wk
2 May
28 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
26 Mar – 9 Apr
13 Jun
5-7 wk
14 May
18 Jul
0 wk
2 May
8 Jul
2 wk before
Potato
Solanum tuberosum
7 – 21 Apr
8 Jun
4-6 wk
19 May
6 Jul
1 wk after
19 May
26 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
26 Mar – 9 Apr
23 Jun
5-7 wk
14 May
28 Jul
0 wk
7 May
18 Jul
1 wk before
Pumpkin
Cucurbita pepo
22 – 29 May
20 Jun
3-4 wk
19 Jun
11 Jul
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
21 – 28 Apr
19 Jun
3-4 wk
19 May
10 Jul
1 wk after
24 May
30 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
2 – 16 Apr
25 Jun
4-6 wk
14 May
23 Jul
0 wk
Lettuce
Lactuca sativa
16 – 23 Apr
12 Jul
3-4 wk
14 May
2 Aug
0 wk
7 May
23 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
2 – 16 Apr
25 Jun
4-6 wk
14 May
23 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
4 – 18 Apr
4 Jun
2-4 wk
2 May
18 Jun
2 wk before
2 May
8 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
7 May
18 Jun
1 wk before
7 May
8 Jun
1 wk before
Spinach
Spinacia oleracea
16 – 23 Apr
27 Jul
3-4 wk
14 May
17 Aug
0 wk
26 Apr
7 Aug
3 wk before
Sweet potato
Ipomoea batatas
10 – 24 Jun
4-6 wk
22 Jul
10 wk after
Garden tomato
Solanum lycopersicum
8 – 22 Apr
7 May
6-8 wk
3 Jun
18 Jun
3 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
6 – 20 May
22 Jun
2-4 wk
3 Jun
6 Jul
3 wk after
19 Jun
26 Jun
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
2 – 16 Apr
25 Jun
4-6 wk
14 May
23 Jul
0 wk
Garden pea
Pisum sativum
16 – 23 Apr
27 Jun
3-4 wk
14 May
18 Jul
0 wk
7 May
8 Jul
1 wk before

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