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Method
Rel. frost
Last spring frost (0°C) 2 Jun Normal year · 20 years of data
Frost-free season 90 days 2 Jun – 31 Aug
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)
14 – 28 Apr
11 Jun
5-7 wk
2 Jun
16 Jul
0 wk
3 Jun
6 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
21 Apr – 5 May
23 Jun
4-6 wk
2 Jun
21 Jul
0 wk
3 Jun
11 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
16 Mar – 13 Apr
25 Mar
8-12 wk
8 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
14 – 28 Apr
6 Jun
5-7 wk
2 Jun
11 Jul
0 wk
2 Jun
1 Jul
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
11 – 18 May
5 Jun
3-4 wk
8 Jun
26 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Fleece
11 – 18 May
24 May
4-5 wk
15 Jun
21 Jun
2 wk after
27 Jun
4 wk after
Butter bean
Phaseolus lunatus
Season too short
13 – 20 Jun
3-4 wk
11 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Greenhouse
10 Mar – 7 Apr
27 Mar
8-12 wk
2 Jun
0 wk
2 Jun
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
3 Jun
0 wk
3 Jun
0 wk
Maize
Zea mays
Greenhouse
5 – 12 May
26 May
3-4 wk
2 Jun
16 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
7 – 14 May
20 Jun
3-4 wk
4 Jun
11 Jul
0 wk
15 Jun
1 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
2 Jun
1 Jul
0 wk
2 Jun
21 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
14 – 28 Apr
6 Jun
5-7 wk
2 Jun
11 Jul
0 wk
2 Jun
1 Jul
0 wk
Potato
Solanum tuberosum
1 – 15 May
11 May
4-6 wk
12 Jun
1 wk after
12 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
14 – 28 Apr
16 Jun
5-7 wk
2 Jun
21 Jul
0 wk
3 Jun
11 Jul
0 wk
Pumpkin
Cucurbita pepo
Fleece
18 – 25 May
10 Jun
3-4 wk
15 Jun
1 Jul
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
7 – 14 May
10 May
3-4 wk
4 Jun
0 wk
15 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
21 Apr – 5 May
18 Jun
4-6 wk
2 Jun
16 Jul
0 wk
Lettuce
Lactuca sativa
5 – 12 May
5 Jul
3-4 wk
2 Jun
26 Jul
0 wk
3 Jun
16 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
21 Apr – 5 May
18 Jun
4-6 wk
2 Jun
16 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
5 – 19 May
12 May
2-4 wk
2 Jun
0 wk
2 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
3 Jun
0 wk
3 Jun
0 wk
Spinach
Spinacia oleracea
5 – 12 May
20 Jul
3-4 wk
2 Jun
10 Aug
0 wk
30 May
31 Jul
0 wk
Sweet potato
Ipomoea batatas
27 Jun – 11 Jul
4-6 wk
8 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
7 – 21 Apr
5 May
6-8 wk
2 Jun
16 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
11 – 25 May
12 Jun
2-4 wk
8 Jun
26 Jun
1 wk after
27 Jun
4 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
21 Apr – 5 May
18 Jun
4-6 wk
2 Jun
16 Jul
0 wk
Garden pea
Pisum sativum
5 – 12 May
20 Jun
3-4 wk
2 Jun
11 Jul
0 wk
3 Jun
1 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
Fleece
4 – 18 May
19 May
4-6 wk
15 Jun
16 Jun
2 wk after
Lemon balm
Melissa officinalis
24 Mar – 7 Apr
16 May
8-10 wk
2 Jun
11 Jul
0 wk
27 Jun
1 Jul
4 wk after
Dill
Anethum graveolens
3 Jun
11 Jul
0 wk
Wild chives
Allium schoenoprasum
7 – 21 Apr
30 May
6-8 wk
2 Jun
11 Jul
0 wk
3 Jun
1 Jul
0 wk
Spearmint
Mentha spicata
10 Mar – 7 Apr
16 May
8-12 wk
2 Jun
11 Jul
0 wk
27 Jun
1 Jul
4 wk after
Coriander
Coriandrum sativum
2 Jun
31 Jul
0 wk
15 Jun
21 Jul
2 wk after
Garden sage
Salvia officinalis
26 Mar – 9 Apr
1 May
8-10 wk
4 Jun
26 Jun
0 wk
Common thyme
Thymus vulgaris
24 Mar – 7 Apr
6 May
8-10 wk
2 Jun
1 Jul
0 wk
Oregano
Origanum vulgare
7 – 21 Apr
20 May
6-8 wk
2 Jun
1 Jul
0 wk
27 Jun
4 wk after
Parsley
Petroselinum crispum
7 – 21 Apr
20 May
6-8 wk
2 Jun
1 Jul
0 wk
3 Jun
21 Jun
0 wk
Rosemary
Salvia rosmarinus
26 Feb – 26 Mar
19 Mar
10-14 wk
4 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
18 – 25 May
26 May
3-4 wk
15 Jun
16 Jun
2 wk after
Cornflower
Centaurea cyanus
2 Jun
11 Jul
0 wk
3 Jun
1 Jul
0 wk
Statice
Limonium sinuatum
6 – 20 Apr
15 Apr
8-10 wk
15 Jun
2 wk after
Sweet William
Dianthus barbatus
7 – 21 Apr
6-8 wk
2 Jun
0 wk
12 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
20 Apr – 4 May
29 Apr
6-8 wk
15 Jun
2 wk after
8 Aug
10 wk after
Pinnate dahlia
Dahlia × pinnata
18 Apr – 2 May
4 May
6-8 wk
13 Jun
15 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Fleece
20 Apr – 18 May
27 May
4-8 wk
15 Jun
24 Jun
2 wk after
15 Jun
2 wk after
Foxglove
Digitalis purpurea
24 Mar – 7 Apr
8-10 wk
2 Jun
0 wk
15 Jun
2 wk after
Busy lizzie
Impatiens walleriana
11 Apr – 9 May
6 Jun
8-12 wk
4 Jul
1 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
20 Apr – 4 May
9 May
6-8 wk
15 Jun
20 Jun
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
4 – 18 May
4-6 wk
15 Jun
2 wk after
Chinese lantern
Physalis alkekengi
26 Mar – 9 Apr
6 Apr
8-10 wk
4 Jun
0 wk
Love in a mist
Nigella damascena
2 Jun
26 Jun
0 wk
3 Jun
16 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Fleece
13 – 27 Apr
28 Apr
6-8 wk
8 Jun
9 Jun
1 wk after
22 Jul
7 wk after
Purple-top vervain
Verbena bonariensis
12 Mar – 9 Apr
6 Apr
8-12 wk
4 Jun
0 wk
Cardoon
Cynara cardunculus
Greenhouse
10 Mar – 7 Apr
17 Mar
8-12 wk
2 Jun
0 wk
Regal-foxtail
Ptilotus nobilis
Greenhouse
16 Mar – 13 Apr
20 Apr
8-12 wk
8 Jun
15 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
13 – 27 Apr
4 May
6-8 wk
8 Jun
15 Jun
1 wk after
Corn poppy
Papaver rhoeas
2 Jun
11 Jul
0 wk
3 Jun
1 Jul
0 wk
Snapdragon
Antirrhinum majus
10 Mar – 7 Apr
6 May
8-12 wk
2 Jun
1 Jul
0 wk
12 Jun
21 Jun
1 wk after
Flossflower
Ageratum houstonianum
25 Apr – 9 May
25 Apr
8-10 wk
4 Jul
5 wk after
Sweet pea
Lathyrus odoratus
7 – 28 Apr
27 May
5-8 wk
2 Jun
1 Jul
0 wk
Stock
Matthiola incana
7 – 21 Apr
30 May
6-8 wk
2 Jun
11 Jul
0 wk
15 Jun
1 Jul
2 wk after
Wormwood
Artemisia absinthium
7 – 21 Apr
30 Apr
6-8 wk
2 Jun
11 Jun
0 wk
15 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
27 Apr – 11 May
13 May
4-6 wk
8 Jun
10 Jun
1 wk after
Garden pansy
Viola × wittrockiana
24 Mar – 7 Apr
16 May
8-10 wk
2 Jun
11 Jul
0 wk
12 Jun
1 Jul
1 wk after
Petunia
Petunia
23 Mar – 20 Apr
15 Apr
8-12 wk
15 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
9 – 23 Apr
20 Apr
6-8 wk
4 Jun
0 wk
15 Jul
6 wk after
Common zinnia
Zinnia elegans
4 – 18 May
19 May
4-6 wk
15 Jun
16 Jun
2 wk after
Common morning glory
Ipomoea purpurea
Fleece
11 – 25 May
26 May
3-5 wk
15 Jun
16 Jun
2 wk after
Garden cosmos
Cosmos bipinnatus
4 – 18 May
18 May
4-6 wk
15 Jun
15 Jun
2 wk after
15 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
11 Apr – 9 May
11 May
8-12 wk
4 Jul
6 Jul
5 wk after
Bee balm
Monarda didyma
10 Mar – 7 Apr
16 Apr
8-12 wk
2 Jun
11 Jun
0 wk
27 Jun
4 wk after
Yarrow
Achillea millefolium
7 – 21 Apr
6-8 wk
2 Jun
0 wk
15 Jun
2 wk after
Safflower
Carthamus tinctorius
2 Jun
11 Jun
0 wk
3 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
7 – 21 Apr
20 May
6-8 wk
2 Jun
1 Jul
0 wk
17 May
21 Jun
2 wk before
Bishop's flower
Ammi majus
21 Apr – 5 May
3 Jun
4-6 wk
2 Jun
1 Jul
0 wk
15 Jun
21 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
16 – 30 Mar
26 Mar
10-12 wk
8 Jun
1 wk after
Sunflower
Helianthus annuus
18 – 25 May
27 May
3-4 wk
15 Jun
17 Jun
2 wk after
27 Jun
4 wk after
China aster
Callistephus chinensis
20 Apr – 4 May
16 May
6-8 wk
15 Jun
27 Jun
2 wk after
15 Jul
6 wk after
Annual phlox
Phlox drummondii
13 – 27 Apr
9 May
6-8 wk
8 Jun
20 Jun
1 wk after
15 Jul
6 wk after
Hollyhock
Alcea rosea
7 – 21 Apr
6-8 wk
2 Jun
0 wk
15 Jun
2 wk after
Alpine delphinium
Delphinium elatum
10 Mar – 7 Apr
16 Apr
8-12 wk
2 Jun
11 Jun
0 wk
27 Jun
4 wk after
African marigold
Tagetes erecta
20 Apr – 4 May
9 May
6-8 wk
15 Jun
20 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
9 – 23 Apr
6 May
6-8 wk
4 Jun
17 Jun
0 wk
15 Jul
6 wk after
Wood sage
Salvia nemorosa
24 Mar – 7 Apr
6 Apr
8-10 wk
2 Jun
0 wk
27 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
6 Apr – 4 May
5 May
6-10 wk
15 Jun
16 Jun
2 wk after
California goldenpoppy
Eschscholzia californica
2 Jun
10 Jul
0 wk
3 Jun
30 Jun
0 wk
Painted tongue
Salpiglossis sinuata
Fleece
30 Mar – 13 Apr
26 Apr
8-10 wk
8 Jun
21 Jun
1 wk after
Water forget-me-not
Myosotis scorpioides
7 – 21 Apr
30 Apr
6-8 wk
2 Jun
11 Jun
0 wk
15 Jun
2 wk after