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Method
Rel. frost
Last spring frost (0°C) 29 May Normal year · 20 years of data
Frost-free season 110 days 29 May – 16 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)
10 – 24 Apr
16 Jun
5-7 wk
29 May
21 Jul
0 wk
2 Jun
11 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
17 Apr – 1 May
28 Jun
4-6 wk
29 May
26 Jul
0 wk
2 Jun
16 Jul
1 wk after
Chili pepper
Capsicum annuum
Greenhouse
12 Mar – 9 Apr
27 Mar
8-12 wk
4 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
10 – 24 Apr
11 Jun
5-7 wk
29 May
16 Jul
0 wk
29 May
6 Jul
0 wk
Garden cucumber
Cucumis sativus
Fleece
14 – 21 May
21 May
3-4 wk
11 Jun
11 Jun
2 wk after
Florence Fennel
Foeniculum vulgare
26 May – 2 Jun
26 May
4-5 wk
30 Jun
5 wk after
17 Jul
7 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)
6 Mar – 3 Apr
20 Mar
8-12 wk
29 May
0 wk
19 Jun
3 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
2 Jun
4 Jun
1 wk after
2 Jun
1 wk after
Maize
Zea mays
Fleece
7 – 14 May
11 May
3-4 wk
4 Jun
1 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
3 – 10 May
4 Jul
3-4 wk
31 May
25 Jul
0 wk
19 Jun
15 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
29 May
6 Jul
0 wk
29 May
26 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
10 – 24 Apr
11 Jun
5-7 wk
29 May
16 Jul
0 wk
29 May
6 Jul
0 wk
Potato
Solanum tuberosum
3 – 17 May
18 May
4-6 wk
14 Jun
15 Jun
2 wk after
14 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
10 – 24 Apr
21 Jun
5-7 wk
29 May
26 Jul
0 wk
2 Jun
16 Jul
1 wk after
Pumpkin
Cucurbita pepo
2 – 9 Jun
3-4 wk
30 Jun
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
3 – 10 May
25 May
3-4 wk
31 May
15 Jun
0 wk
19 Jun
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
17 Apr – 1 May
23 Jun
4-6 wk
29 May
21 Jul
0 wk
Lettuce
Lactuca sativa
1 – 8 May
10 Jul
3-4 wk
29 May
31 Jul
0 wk
2 Jun
21 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
17 Apr – 1 May
23 Jun
4-6 wk
29 May
21 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
1 – 15 May
23 May
2-4 wk
29 May
6 Jun
0 wk
29 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
2 Jun
4 Jun
1 wk after
2 Jun
1 wk after
Spinach
Spinacia oleracea
1 – 8 May
25 Jul
3-4 wk
29 May
15 Aug
0 wk
25 May
5 Aug
1 wk before
Sweet potato
Ipomoea batatas
30 Jun – 14 Jul
4-6 wk
11 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Fleece
9 – 23 Apr
20 Apr
6-8 wk
4 Jun
1 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
14 – 28 May
28 May
2-4 wk
11 Jun
11 Jun
2 wk after
17 Jul
7 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
17 Apr – 1 May
23 Jun
4-6 wk
29 May
21 Jul
0 wk
Garden pea
Pisum sativum
1 – 8 May
25 Jun
3-4 wk
29 May
16 Jul
0 wk
2 Jun
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
Fleece
30 Apr – 14 May
26 May
4-6 wk
11 Jun
23 Jun
2 wk after
Lemon balm
Melissa officinalis
20 Mar – 3 Apr
21 May
8-10 wk
29 May
16 Jul
0 wk
3 Jul
6 Jul
5 wk after
Dill
Anethum graveolens
2 Jun
25 Jul
1 wk after
Wild chives
Allium schoenoprasum
3 – 17 Apr
4 Jun
6-8 wk
29 May
16 Jul
0 wk
2 Jun
6 Jul
1 wk after
Spearmint
Mentha spicata
6 Mar – 3 Apr
21 May
8-12 wk
29 May
16 Jul
0 wk
3 Jul
6 Jul
5 wk after
Coriander
Coriandrum sativum
29 May
14 Aug
0 wk
19 Jun
4 Aug
3 wk after
Garden sage
Salvia officinalis
22 Mar – 5 Apr
6 May
8-10 wk
31 May
1 Jul
0 wk
Common thyme
Thymus vulgaris
20 Mar – 3 Apr
11 May
8-10 wk
29 May
6 Jul
0 wk
Oregano
Origanum vulgare
3 – 17 Apr
25 May
6-8 wk
29 May
6 Jul
0 wk
3 Jul
5 wk after
Parsley
Petroselinum crispum
3 – 17 Apr
25 May
6-8 wk
29 May
6 Jul
0 wk
2 Jun
26 Jun
1 wk after
Rosemary
Salvia rosmarinus
22 Feb – 22 Mar
1 Apr
10-14 wk
31 May
10 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
Fleece
14 – 21 May
2 Jun
3-4 wk
11 Jun
23 Jun
2 wk after
Cornflower
Centaurea cyanus
29 May
16 Jul
0 wk
2 Jun
6 Jul
1 wk after
Statice
Limonium sinuatum
2 – 16 Apr
21 Apr
8-10 wk
11 Jun
16 Jun
2 wk after
Sweet William
Dianthus barbatus
3 – 17 Apr
6-8 wk
29 May
0 wk
14 Jun
2 wk after
Snow-on-the-mountain
Euphorbia marginata
16 – 30 Apr
5 May
6-8 wk
11 Jun
16 Jun
2 wk after
11 Aug
11 wk after
Pinnate dahlia
Dahlia × pinnata
14 – 28 Apr
10 May
6-8 wk
9 Jun
21 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
8 May – 5 Jun
24 May
4-8 wk
3 Jul
5 wk after
3 Jul
5 wk after
Foxglove
Digitalis purpurea
20 Mar – 3 Apr
8-10 wk
29 May
0 wk
19 Jun
3 wk after
Busy lizzie
Impatiens walleriana
7 Apr – 5 May
13 Jun
8-12 wk
30 Jun
8 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
16 – 30 Apr
15 May
6-8 wk
11 Jun
26 Jun
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
30 Apr – 14 May
4-6 wk
11 Jun
2 wk after
Chinese lantern
Physalis alkekengi
22 Mar – 5 Apr
20 Apr
8-10 wk
31 May
15 Jun
0 wk
Love in a mist
Nigella damascena
29 May
1 Jul
0 wk
2 Jun
21 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
16 – 30 Apr
25 Apr
6-8 wk
11 Jun
2 wk after
11 Aug
11 wk after
Purple-top vervain
Verbena bonariensis
8 Mar – 5 Apr
20 Apr
8-12 wk
31 May
15 Jun
0 wk
Cardoon
Cynara cardunculus
Fleece
12 Mar – 9 Apr
22 Mar
8-12 wk
4 Jun
1 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
19 Mar – 16 Apr
18 Apr
8-12 wk
11 Jun
13 Jun
2 wk after
Globe amaranth
Gomphrena globosa
Fleece
16 – 30 Apr
2 May
6-8 wk
11 Jun
13 Jun
2 wk after
Corn poppy
Papaver rhoeas
29 May
16 Jul
0 wk
2 Jun
6 Jul
1 wk after
Snapdragon
Antirrhinum majus
6 Mar – 3 Apr
11 May
8-12 wk
29 May
6 Jul
0 wk
14 Jun
26 Jun
2 wk after
Flossflower
Ageratum houstonianum
21 Apr – 5 May
1 May
8-10 wk
30 Jun
5 wk after
Sweet pea
Lathyrus odoratus
3 – 24 Apr
1 Jun
5-8 wk
29 May
6 Jul
0 wk
Stock
Matthiola incana
3 – 17 Apr
4 Jun
6-8 wk
29 May
16 Jul
0 wk
19 Jun
6 Jul
3 wk after
Wormwood
Artemisia absinthium
3 – 17 Apr
5 May
6-8 wk
29 May
16 Jun
0 wk
19 Jun
3 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
30 Apr – 14 May
11 May
4-6 wk
11 Jun
2 wk after
Garden pansy
Viola × wittrockiana
20 Mar – 3 Apr
21 May
8-10 wk
29 May
16 Jul
0 wk
14 Jun
6 Jul
2 wk after
Petunia
Petunia
19 Mar – 16 Apr
21 Apr
8-12 wk
11 Jun
16 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
5 – 19 Apr
4 May
6-8 wk
31 May
15 Jun
0 wk
17 Jul
7 wk after
Common zinnia
Zinnia elegans
30 Apr – 14 May
26 May
4-6 wk
11 Jun
23 Jun
2 wk after
Common morning glory
Ipomoea purpurea
Fleece
7 – 21 May
2 Jun
3-5 wk
11 Jun
23 Jun
2 wk after
Garden cosmos
Cosmos bipinnatus
30 Apr – 14 May
24 May
4-6 wk
11 Jun
21 Jun
2 wk after
17 Jul
7 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
7 Apr – 5 May
18 May
8-12 wk
30 Jun
13 Jul
5 wk after
Bee balm
Monarda didyma
6 Mar – 3 Apr
21 Apr
8-12 wk
29 May
16 Jun
0 wk
3 Jul
5 wk after
Yarrow
Achillea millefolium
3 – 17 Apr
5 Apr
6-8 wk
29 May
0 wk
19 Jun
3 wk after
Safflower
Carthamus tinctorius
29 May
16 Jun
0 wk
2 Jun
6 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
3 – 17 Apr
25 May
6-8 wk
29 May
6 Jul
0 wk
11 May
26 Jun
3 wk before
Bishop's flower
Ammi majus
17 Apr – 1 May
8 Jun
4-6 wk
29 May
6 Jul
0 wk
19 Jun
26 Jun
3 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
12 – 26 Mar
1 Apr
10-12 wk
4 Jun
10 Jun
1 wk after
Sunflower
Helianthus annuus
14 – 21 May
9 Jun
3-4 wk
11 Jun
30 Jun
2 wk after
3 Jul
5 wk after
China aster
Callistephus chinensis
16 – 30 Apr
29 May
6-8 wk
11 Jun
10 Jul
2 wk after
17 Jul
7 wk after
Annual phlox
Phlox drummondii
9 – 23 Apr
15 May
6-8 wk
4 Jun
26 Jun
1 wk after
17 Jul
7 wk after
Hollyhock
Alcea rosea
3 – 17 Apr
6-8 wk
29 May
0 wk
19 Jun
3 wk after
Alpine delphinium
Delphinium elatum
6 Mar – 3 Apr
21 Apr
8-12 wk
29 May
16 Jun
0 wk
3 Jul
5 wk after
African marigold
Tagetes erecta
16 – 30 Apr
15 May
6-8 wk
11 Jun
26 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
5 – 19 Apr
19 May
6-8 wk
31 May
30 Jun
0 wk
17 Jul
7 wk after
Wood sage
Salvia nemorosa
20 Mar – 3 Apr
11 Apr
8-10 wk
29 May
6 Jun
0 wk
3 Jul
5 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
2 – 30 Apr
12 May
6-10 wk
11 Jun
23 Jun
2 wk after
California goldenpoppy
Eschscholzia californica
29 May
16 Jul
0 wk
2 Jun
6 Jul
1 wk after
Painted tongue
Salpiglossis sinuata
2 – 16 Apr
28 Apr
8-10 wk
11 Jun
23 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
3 – 17 Apr
5 May
6-8 wk
29 May
16 Jun
0 wk
19 Jun
3 wk after