Useful gardening information
Fresh spinach seed germinates readily at 38-40F and
may be planted with good results when soil temperatures are 50
to 60 F. Higher temperatures reduce seed germination. Soil
temperatures above 85 F will inhibit seed germination. Spinach
seed rapidly loses viability. Fresh seed should be purchased
each year. Spinach should be planted in rows 1 to 2 feet apart.
The seed should be placed 1/2 inch deep and planted to have one
plant every 3 to 4 inches after thinning.
Spinach requires a soil pH of 6.0 - 6.5 and will not grow well
if pH is below 6.0. Indications of possible soil pH problems
include poor seed germination, yellowing and browning of the
margins and tips of seedling leaves, browning of roots, and
generally slow growth or death of the plants. If soil pH is too
high, leaves may show a generalized yellowing or chlorosis.
Spinach is adapted to a range of soil types, from light and
sandy to silty clay loams. In heavier soils, spinach should be
grown on raised beds to improve drainage for the shallow-rooted
plants. Seedling damping off can be reduced by use of raised
beds. After seeding, the soil should be kept uniformly moist.
When irrigating the garden, apply water in the morning so that
the foliage is dry before dark. Apply sufficient water to
moisten the soil to a depth of six inches. A uniform supply of
soil moisture is required to produce high quality, tender
Spinach growth starts slowly and then accelerates during the
final 21 days before harvest. If a soil test has not been
taken, broadcast 5-10-10 fertilizer at 30 pounds per 1,000
square feet before planting. Spinach should be side-dressed
once during the growing season with ammonium nitrate at 1 pound
per 100 feet of row or calcium nitrate at 2 pounds per 100 feet
of row. A total of approximately 150 lb/A of actual N is
recommended, usually applied 1/2 preplant and 1/2 as a
broadcast application 3-4 weeks after seeding. Spinach requires
fairly high boron (B). Most soils in Nebraska supply adequate
boron for spinach. Spinach plants can become stunted with dark
roots and small, flattened, yellow leaves when boron is
deficient. An application of 1 pound of boron (10 lb/A of
borax) broadcast before seeding should eliminate the problem in
subsequent years. NEVER use boron unless needed and then only
in the recommended amounts. Boron is highly toxic to many other
garden plants including snap beans, cucumbers, peas and
Emergence rate varies depending upon soil temperature; time
from planting to harvest also is highly temperature dependent.
Generally, most varieties can be harvested 45 to 50 days after
planting. Spinach can be harvested from the time the plants
have five to six leaves until just before seedstalk
Informative articles found on the web:
How to grow
Benefits of Spinach
SF125 Reflect F1 Hybrid
Very healthy, vigourous upright plants produce an abundance of round-oval leaves that tend not to cup. Suitable for bunching and also for clipping as baby leaves.
Our earliest spinach. Vigorous, dark green, semi-savoyed, oval leaves grow upright and tend not to cup like traditional spinach. Tolerant to Downy Mildew races 1 through 11.
Smooth dark green elongated leaf, short upright habit, uniform baby type, ( harvest young for baby leaf, mature for regular spinach ) summer harvest, 53 days.
SF064 Red Kitten Hybrid
Use for baby leaf production in the early spring or full size bunching in the fall and winter. Uniform, smooth leaves are borne on fairly upright plants. Just a few days slower growing than Red Cardinal, which it replaces. Resistant to downy mildew races 1-13. 52 days.
50 days. This spinach has dark green deeply savoyed leaves. The
plants stand well in hot weather without bolting and bear for
an extremely long period of time. A vigorous upright plant that
does well in spring, summer and fall.
3429 Razzle Dazzle Hybrid
This hybrid variety produces ready-to-harvest leaves just 30 days after sprouting! Best when planted in the early spring when it will be less likely to bolt easily. This high yielder grows up to 20” tall and is resistant to four types of Downy Mildew. Narrow, pointed leaves are mild and sweet, and are excellent for freezing!
3405 Unipack 151
Semi-Savoy, upright, dark green, all season, good heat, mildew, and bolt resistance, 40 days.
Spinach 3316 Oriental Giant
F1, Fast grower, giant smooth arrowhead shape leaf, twice as big as others, huge yield, rich mild flavor, crunchy, resists mildew, 50 days.
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1A014 New Zealand Spinach ( Spinach Substitute )
70 days. Unlike spinach this plant loves hot weather and makes
a wonderful midsummer green. The plants are large and spreading
and can tolerate droughts. They are disease and insect
resistant. It produces small, thick, tender, dark green
triangular leaves. The more you cut them, the more they will
produce. The seeds are slow to germinate and need to be soaked
for 24 hours. Plant 2’ apart each way. Pick the leaves
from the tips of the branches.
This is the giant of the spinach clan, plants spread to 25"!
Tender leaves are great for canning, steaming or salads, for
those who want quantity and quality, introduced in 1926.
Note: The price of this item has been slashed to Ninety Five cents per pack! To order this and fifty other vegetable seed selections for only 95 cents per pack, please visit our GoodCentsVegetables Seed List.