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Method
Rel. frost
Last spring frost (0°C) 9 Jun Normal year · 20 years of data
Frost-free season 87 days 9 Jun – 4 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)
21 Apr – 5 May
16 Jun
5-7 wk
9 Jun
21 Jul
0 wk
13 Jun
11 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
28 Apr – 12 May
28 Jun
4-6 wk
9 Jun
26 Jul
0 wk
13 Jun
16 Jul
1 wk after
Chili pepper
Capsicum annuum
Season too short
23 Mar – 20 Apr
8-12 wk
15 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
21 Apr – 5 May
11 Jun
5-7 wk
9 Jun
16 Jul
0 wk
9 Jun
6 Jul
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
18 – 25 May
27 May
3-4 wk
15 Jun
17 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Fleece
18 – 25 May
2 Jun
4-5 wk
22 Jun
30 Jun
2 wk after
14 Jul
5 wk after
Butter bean
Phaseolus lunatus
Season too short
20 – 27 Jun
3-4 wk
18 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Greenhouse
17 Mar – 14 Apr
1 Apr
8-12 wk
9 Jun
0 wk
9 Jun
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
13 Jun
1 wk after
13 Jun
1 wk after
Maize
Zea mays
Greenhouse
12 – 19 May
17 May
3-4 wk
9 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
14 – 21 May
29 Jun
3-4 wk
11 Jun
20 Jul
0 wk
30 Jun
10 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
9 Jun
6 Jul
0 wk
9 Jun
26 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
21 Apr – 5 May
11 Jun
5-7 wk
9 Jun
16 Jul
0 wk
9 Jun
6 Jul
0 wk
Potato
Solanum tuberosum
14 – 28 May
18 May
4-6 wk
25 Jun
2 wk after
25 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
21 Apr – 5 May
21 Jun
5-7 wk
9 Jun
26 Jul
0 wk
13 Jun
16 Jul
1 wk after
Pumpkin
Cucurbita pepo
Fleece
25 May – 1 Jun
1 Jun
3-4 wk
22 Jun
22 Jun
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
14 – 21 May
16 May
3-4 wk
11 Jun
0 wk
30 Jun
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
28 Apr – 12 May
23 Jun
4-6 wk
9 Jun
21 Jul
0 wk
Lettuce
Lactuca sativa
12 – 19 May
10 Jul
3-4 wk
9 Jun
31 Jul
0 wk
13 Jun
21 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
28 Apr – 12 May
23 Jun
4-6 wk
9 Jun
21 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
12 – 26 May
23 May
2-4 wk
9 Jun
0 wk
9 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
13 Jun
1 wk after
13 Jun
1 wk after
Spinach
Spinacia oleracea
12 – 19 May
25 Jul
3-4 wk
9 Jun
15 Aug
0 wk
5 Jun
5 Aug
1 wk before
Sweet potato
Ipomoea batatas
11 – 25 Jul
4-6 wk
22 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
14 – 28 Apr
26 Apr
6-8 wk
9 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
18 May – 1 Jun
3 Jun
2-4 wk
15 Jun
17 Jun
1 wk after
14 Jul
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
28 Apr – 12 May
23 Jun
4-6 wk
9 Jun
21 Jul
0 wk
Garden pea
Pisum sativum
12 – 19 May
25 Jun
3-4 wk
9 Jun
16 Jul
0 wk
13 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
Greenhouse
4 – 18 May
31 May
4-6 wk
15 Jun
28 Jun
1 wk after
Lemon balm
Melissa officinalis
31 Mar – 14 Apr
21 May
8-10 wk
9 Jun
16 Jul
0 wk
14 Jul
5 wk after
Dill
Anethum graveolens
13 Jun
20 Jul
1 wk after
Wild chives
Allium schoenoprasum
14 – 28 Apr
4 Jun
6-8 wk
9 Jun
16 Jul
0 wk
13 Jun
6 Jul
1 wk after
Spearmint
Mentha spicata
17 Mar – 14 Apr
21 May
8-12 wk
9 Jun
16 Jul
0 wk
14 Jul
5 wk after
Coriander
Coriandrum sativum
9 Jun
9 Aug
0 wk
30 Jun
30 Jul
3 wk after
Garden sage
Salvia officinalis
2 – 16 Apr
6 May
8-10 wk
11 Jun
1 Jul
0 wk
Common thyme
Thymus vulgaris
31 Mar – 14 Apr
11 May
8-10 wk
9 Jun
6 Jul
0 wk
Oregano
Origanum vulgare
14 – 28 Apr
25 May
6-8 wk
9 Jun
6 Jul
0 wk
14 Jul
5 wk after
Parsley
Petroselinum crispum
14 – 28 Apr
25 May
6-8 wk
9 Jun
6 Jul
0 wk
13 Jun
26 Jun
1 wk after
Rosemary
Salvia rosmarinus
5 Mar – 2 Apr
25 Mar
10-14 wk
11 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
Greenhouse
18 – 25 May
7 Jun
3-4 wk
15 Jun
28 Jun
1 wk after
Cornflower
Centaurea cyanus
9 Jun
16 Jul
0 wk
13 Jun
6 Jul
1 wk after
Statice
Limonium sinuatum
Fleece
6 – 20 Apr
27 Apr
8-10 wk
15 Jun
22 Jun
1 wk after
Sweet William
Dianthus barbatus
14 – 28 Apr
6-8 wk
9 Jun
0 wk
25 Jun
2 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
20 Apr – 4 May
11 May
6-8 wk
15 Jun
22 Jun
1 wk after
7 Aug
8 wk after
Pinnate dahlia
Dahlia × pinnata
25 Apr – 9 May
7 May
6-8 wk
20 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Fleece
5 May – 2 Jun
27 May
4-8 wk
30 Jun
3 wk after
30 Jun
3 wk after
Foxglove
Digitalis purpurea
31 Mar – 14 Apr
8-10 wk
9 Jun
0 wk
30 Jun
3 wk after
Busy lizzie
Impatiens walleriana
18 Apr – 16 May
28 May
8-12 wk
11 Jul
23 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
27 Apr – 11 May
10 May
6-8 wk
22 Jun
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
11 – 25 May
4-6 wk
22 Jun
2 wk after
Chinese lantern
Physalis alkekengi
2 – 16 Apr
15 Apr
8-10 wk
11 Jun
0 wk
Love in a mist
Nigella damascena
9 Jun
1 Jul
0 wk
13 Jun
21 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
Fleece
20 Apr – 4 May
1 May
6-8 wk
15 Jun
1 wk after
7 Aug
8 wk after
Purple-top vervain
Verbena bonariensis
19 Mar – 16 Apr
15 Apr
8-12 wk
11 Jun
0 wk
Cardoon
Cynara cardunculus
Greenhouse
17 Mar – 14 Apr
22 Mar
8-12 wk
9 Jun
0 wk
Regal-foxtail
Ptilotus nobilis
Greenhouse
23 Mar – 20 Apr
23 Apr
8-12 wk
15 Jun
18 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
20 Apr – 4 May
7 May
6-8 wk
15 Jun
18 Jun
1 wk after
Corn poppy
Papaver rhoeas
9 Jun
16 Jul
0 wk
13 Jun
6 Jul
1 wk after
Snapdragon
Antirrhinum majus
17 Mar – 14 Apr
11 May
8-12 wk
9 Jun
6 Jul
0 wk
25 Jun
26 Jun
2 wk after
Flossflower
Ageratum houstonianum
Fleece
13 – 27 Apr
7 May
8-10 wk
22 Jun
2 Jul
2 wk after
Sweet pea
Lathyrus odoratus
14 Apr – 5 May
1 Jun
5-8 wk
9 Jun
6 Jul
0 wk
Stock
Matthiola incana
14 – 28 Apr
4 Jun
6-8 wk
9 Jun
16 Jul
0 wk
30 Jun
6 Jul
3 wk after
Wormwood
Artemisia absinthium
14 – 28 Apr
5 May
6-8 wk
9 Jun
16 Jun
0 wk
30 Jun
3 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
4 – 18 May
16 May
4-6 wk
15 Jun
1 wk after
Garden pansy
Viola × wittrockiana
31 Mar – 14 Apr
21 May
8-10 wk
9 Jun
16 Jul
0 wk
25 Jun
6 Jul
2 wk after
Petunia
Petunia
Fleece
23 Mar – 20 Apr
27 Apr
8-12 wk
15 Jun
22 Jun
1 wk after
Sweet Scabious
Scabiosa atropurpurea
16 – 30 Apr
29 Apr
6-8 wk
11 Jun
0 wk
28 Jul
7 wk after
Common zinnia
Zinnia elegans
Fleece
4 – 18 May
31 May
4-6 wk
15 Jun
28 Jun
1 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
11 – 25 May
7 Jun
3-5 wk
15 Jun
28 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
11 – 25 May
21 May
4-6 wk
22 Jun
2 wk after
28 Jul
7 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
30 Mar – 27 Apr
23 May
8-12 wk
22 Jun
18 Jul
2 wk after
Bee balm
Monarda didyma
17 Mar – 14 Apr
21 Apr
8-12 wk
9 Jun
16 Jun
0 wk
14 Jul
5 wk after
Yarrow
Achillea millefolium
14 – 28 Apr
6-8 wk
9 Jun
0 wk
30 Jun
3 wk after
Safflower
Carthamus tinctorius
9 Jun
16 Jun
0 wk
13 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
14 – 28 Apr
25 May
6-8 wk
9 Jun
6 Jul
0 wk
22 May
26 Jun
3 wk before
Bishop's flower
Ammi majus
28 Apr – 12 May
8 Jun
4-6 wk
9 Jun
6 Jul
0 wk
30 Jun
3 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
23 Mar – 6 Apr
26 Mar
10-12 wk
15 Jun
1 wk after
Sunflower
Helianthus annuus
25 May – 1 Jun
2 Jun
3-4 wk
22 Jun
23 Jun
2 wk after
14 Jul
5 wk after
China aster
Callistephus chinensis
27 Apr – 11 May
22 May
6-8 wk
22 Jun
3 Jul
2 wk after
28 Jul
7 wk after
Annual phlox
Phlox drummondii
20 Apr – 4 May
10 May
6-8 wk
15 Jun
21 Jun
1 wk after
28 Jul
7 wk after
Hollyhock
Alcea rosea
14 – 28 Apr
6-8 wk
9 Jun
0 wk
30 Jun
3 wk after
Alpine delphinium
Delphinium elatum
17 Mar – 14 Apr
21 Apr
8-12 wk
9 Jun
16 Jun
0 wk
14 Jul
5 wk after
African marigold
Tagetes erecta
27 Apr – 11 May
10 May
6-8 wk
22 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
16 – 30 Apr
12 May
6-8 wk
11 Jun
23 Jun
0 wk
28 Jul
7 wk after
Wood sage
Salvia nemorosa
31 Mar – 14 Apr
11 Apr
8-10 wk
9 Jun
0 wk
14 Jul
5 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
6 Apr – 4 May
17 May
6-10 wk
15 Jun
28 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
9 Jun
16 Jul
0 wk
13 Jun
6 Jul
1 wk after
Painted tongue
Salpiglossis sinuata
13 – 27 Apr
21 Apr
8-10 wk
22 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
14 – 28 Apr
5 May
6-8 wk
9 Jun
16 Jun
0 wk
30 Jun
3 wk after