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Method
Rel. frost
Last spring frost (0°C) 5 Jun Normal year · 20 years of data
Frost-free season 93 days 5 Jun – 6 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)
17 Apr – 1 May
15 Jun
5-7 wk
5 Jun
20 Jul
0 wk
9 Jun
10 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
24 Apr – 8 May
27 Jun
4-6 wk
5 Jun
25 Jul
0 wk
9 Jun
15 Jul
1 wk after
Chili pepper
Capsicum annuum
Season too short
19 Mar – 16 Apr
8-12 wk
11 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
17 Apr – 1 May
10 Jun
5-7 wk
5 Jun
15 Jul
0 wk
5 Jun
5 Jul
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
14 – 21 May
6 Jun
3-4 wk
11 Jun
27 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Fleece
14 – 21 May
31 May
4-5 wk
18 Jun
28 Jun
2 wk after
10 Jul
5 wk after
Butter bean
Phaseolus lunatus
Season too short
16 – 23 Jun
3-4 wk
14 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Greenhouse
13 Mar – 10 Apr
31 Mar
8-12 wk
5 Jun
0 wk
5 Jun
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
9 Jun
1 wk after
9 Jun
1 wk after
Maize
Zea mays
Greenhouse
8 – 15 May
27 May
3-4 wk
5 Jun
17 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
10 – 17 May
27 Jun
3-4 wk
7 Jun
18 Jul
0 wk
26 Jun
8 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
5 Jun
5 Jul
0 wk
5 Jun
25 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
17 Apr – 1 May
10 Jun
5-7 wk
5 Jun
15 Jul
0 wk
5 Jun
5 Jul
0 wk
Potato
Solanum tuberosum
10 – 24 May
13 May
4-6 wk
21 Jun
2 wk after
21 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
17 Apr – 1 May
20 Jun
5-7 wk
5 Jun
25 Jul
0 wk
9 Jun
15 Jul
1 wk after
Pumpkin
Cucurbita pepo
Fleece
21 – 28 May
11 Jun
3-4 wk
18 Jun
2 Jul
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
10 – 17 May
16 May
3-4 wk
7 Jun
0 wk
26 Jun
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
24 Apr – 8 May
22 Jun
4-6 wk
5 Jun
20 Jul
0 wk
Lettuce
Lactuca sativa
8 – 15 May
9 Jul
3-4 wk
5 Jun
30 Jul
0 wk
9 Jun
20 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
24 Apr – 8 May
22 Jun
4-6 wk
5 Jun
20 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
8 – 22 May
22 May
2-4 wk
5 Jun
5 Jun
0 wk
5 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
9 Jun
1 wk after
9 Jun
1 wk after
Spinach
Spinacia oleracea
8 – 15 May
24 Jul
3-4 wk
5 Jun
14 Aug
0 wk
1 Jun
4 Aug
1 wk before
Sweet potato
Ipomoea batatas
7 – 21 Jul
4-6 wk
18 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
10 – 24 Apr
6 May
6-8 wk
5 Jun
17 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
14 – 28 May
13 Jun
2-4 wk
11 Jun
27 Jun
1 wk after
10 Jul
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
24 Apr – 8 May
22 Jun
4-6 wk
5 Jun
20 Jul
0 wk
Garden pea
Pisum sativum
8 – 15 May
24 Jun
3-4 wk
5 Jun
15 Jul
0 wk
9 Jun
5 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
7 – 21 May
20 May
4-6 wk
18 Jun
2 wk after
Lemon balm
Melissa officinalis
27 Mar – 10 Apr
20 May
8-10 wk
5 Jun
15 Jul
0 wk
10 Jul
5 wk after
Dill
Anethum graveolens
9 Jun
18 Jul
1 wk after
Wild chives
Allium schoenoprasum
10 – 24 Apr
3 Jun
6-8 wk
5 Jun
15 Jul
0 wk
9 Jun
5 Jul
1 wk after
Spearmint
Mentha spicata
13 Mar – 10 Apr
20 May
8-12 wk
5 Jun
15 Jul
0 wk
10 Jul
5 wk after
Coriander
Coriandrum sativum
5 Jun
7 Aug
0 wk
26 Jun
28 Jul
3 wk after
Garden sage
Salvia officinalis
29 Mar – 12 Apr
5 May
8-10 wk
7 Jun
30 Jun
0 wk
Common thyme
Thymus vulgaris
27 Mar – 10 Apr
10 May
8-10 wk
5 Jun
5 Jul
0 wk
Oregano
Origanum vulgare
10 – 24 Apr
24 May
6-8 wk
5 Jun
5 Jul
0 wk
10 Jul
5 wk after
Parsley
Petroselinum crispum
10 – 24 Apr
24 May
6-8 wk
5 Jun
5 Jul
0 wk
9 Jun
25 Jun
1 wk after
Rosemary
Salvia rosmarinus
1 – 29 Mar
21 Mar
10-14 wk
7 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
21 – 28 May
27 May
3-4 wk
18 Jun
2 wk after
Cornflower
Centaurea cyanus
5 Jun
15 Jul
0 wk
9 Jun
5 Jul
1 wk after
Statice
Limonium sinuatum
9 – 23 Apr
19 Apr
8-10 wk
18 Jun
2 wk after
Sweet William
Dianthus barbatus
10 – 24 Apr
6-8 wk
5 Jun
0 wk
21 Jun
2 wk after
Snow-on-the-mountain
Euphorbia marginata
23 Apr – 7 May
3 May
6-8 wk
18 Jun
2 wk after
18 Aug
11 wk after
Pinnate dahlia
Dahlia × pinnata
21 Apr – 5 May
7 May
6-8 wk
16 Jun
18 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
15 May – 12 Jun
21 May
4-8 wk
10 Jul
5 wk after
10 Jul
5 wk after
Foxglove
Digitalis purpurea
27 Mar – 10 Apr
8-10 wk
5 Jun
0 wk
26 Jun
3 wk after
Busy lizzie
Impatiens walleriana
14 Apr – 12 May
7 Jun
8-12 wk
7 Jul
2 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
23 Apr – 7 May
13 May
6-8 wk
18 Jun
24 Jun
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
7 – 21 May
4-6 wk
18 Jun
2 wk after
Chinese lantern
Physalis alkekengi
29 Mar – 12 Apr
13 Apr
8-10 wk
7 Jun
8 Jun
0 wk
Love in a mist
Nigella damascena
5 Jun
30 Jun
0 wk
9 Jun
20 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
23 Apr – 7 May
23 Apr
6-8 wk
18 Jun
2 wk after
18 Aug
11 wk after
Purple-top vervain
Verbena bonariensis
15 Mar – 12 Apr
13 Apr
8-12 wk
7 Jun
8 Jun
0 wk
Cardoon
Cynara cardunculus
Greenhouse
13 Mar – 10 Apr
21 Mar
8-12 wk
5 Jun
0 wk
Regal-foxtail
Ptilotus nobilis
Fleece
26 Mar – 23 Apr
12 Apr
8-12 wk
18 Jun
2 wk after
Globe amaranth
Gomphrena globosa
Fleece
23 Apr – 7 May
26 Apr
6-8 wk
18 Jun
2 wk after
Corn poppy
Papaver rhoeas
5 Jun
15 Jul
0 wk
9 Jun
5 Jul
1 wk after
Snapdragon
Antirrhinum majus
13 Mar – 10 Apr
10 May
8-12 wk
5 Jun
5 Jul
0 wk
21 Jun
25 Jun
2 wk after
Flossflower
Ageratum houstonianum
Fleece
9 – 23 Apr
8 May
8-10 wk
18 Jun
3 Jul
2 wk after
Sweet pea
Lathyrus odoratus
10 Apr – 1 May
31 May
5-8 wk
5 Jun
5 Jul
0 wk
Stock
Matthiola incana
10 – 24 Apr
3 Jun
6-8 wk
5 Jun
15 Jul
0 wk
26 Jun
5 Jul
3 wk after
Wormwood
Artemisia absinthium
10 – 24 Apr
4 May
6-8 wk
5 Jun
15 Jun
0 wk
26 Jun
3 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
30 Apr – 14 May
16 May
4-6 wk
11 Jun
13 Jun
1 wk after
Garden pansy
Viola × wittrockiana
27 Mar – 10 Apr
20 May
8-10 wk
5 Jun
15 Jul
0 wk
21 Jun
5 Jul
2 wk after
Petunia
Petunia
26 Mar – 23 Apr
19 Apr
8-12 wk
18 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
12 – 26 Apr
27 Apr
6-8 wk
7 Jun
8 Jun
0 wk
24 Jul
7 wk after
Common zinnia
Zinnia elegans
7 – 21 May
20 May
4-6 wk
18 Jun
2 wk after
Common morning glory
Ipomoea purpurea
Fleece
14 – 28 May
27 May
3-5 wk
18 Jun
2 wk after
Garden cosmos
Cosmos bipinnatus
7 – 21 May
21 May
4-6 wk
18 Jun
18 Jun
2 wk after
24 Jul
7 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
26 Mar – 23 Apr
23 May
8-12 wk
18 Jun
18 Jul
2 wk after
Bee balm
Monarda didyma
13 Mar – 10 Apr
20 Apr
8-12 wk
5 Jun
15 Jun
0 wk
10 Jul
5 wk after
Yarrow
Achillea millefolium
10 – 24 Apr
6-8 wk
5 Jun
0 wk
26 Jun
3 wk after
Safflower
Carthamus tinctorius
5 Jun
15 Jun
0 wk
9 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
10 – 24 Apr
24 May
6-8 wk
5 Jun
5 Jul
0 wk
18 May
25 Jun
3 wk before
Bishop's flower
Ammi majus
24 Apr – 8 May
7 Jun
4-6 wk
5 Jun
5 Jul
0 wk
26 Jun
3 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
19 Mar – 2 Apr
27 Mar
10-12 wk
11 Jun
1 wk after
Sunflower
Helianthus annuus
21 – 28 May
29 May
3-4 wk
18 Jun
19 Jun
2 wk after
10 Jul
5 wk after
China aster
Callistephus chinensis
23 Apr – 7 May
18 May
6-8 wk
18 Jun
29 Jun
2 wk after
24 Jul
7 wk after
Annual phlox
Phlox drummondii
16 – 30 Apr
13 May
6-8 wk
11 Jun
24 Jun
1 wk after
24 Jul
7 wk after
Hollyhock
Alcea rosea
10 – 24 Apr
6-8 wk
5 Jun
0 wk
26 Jun
3 wk after
Alpine delphinium
Delphinium elatum
13 Mar – 10 Apr
20 Apr
8-12 wk
5 Jun
15 Jun
0 wk
10 Jul
5 wk after
African marigold
Tagetes erecta
23 Apr – 7 May
13 May
6-8 wk
18 Jun
24 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
12 – 26 Apr
8 May
6-8 wk
7 Jun
19 Jun
0 wk
24 Jul
7 wk after
Wood sage
Salvia nemorosa
27 Mar – 10 Apr
10 Apr
8-10 wk
5 Jun
5 Jun
0 wk
10 Jul
5 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
9 Apr – 7 May
6 May
6-10 wk
18 Jun
2 wk after
California goldenpoppy
Eschscholzia californica
5 Jun
11 Jul
0 wk
9 Jun
1 Jul
1 wk after
Painted tongue
Salpiglossis sinuata
9 – 23 Apr
14 Apr
8-10 wk
18 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
10 – 24 Apr
4 May
6-8 wk
5 Jun
15 Jun
0 wk
26 Jun
3 wk after