Planting dates
For standard spinach, Texas A&M says to plant as early as the soil can be worked in spring or in August and later for a fall crop. Both routes depend on cool conditions. High summer heat and long days can make standard spinach bolt, so a calendar label alone is not enough.
Texas A&M: Spinach and other greensYour region
This source gives a seasonal rule rather than county-specific dates. Use it to decide whether your garden is entering a workable cool-season window, then ask your county Extension office for a local calendar if you need a precise planning range. Do not borrow a warm-season green’s date for standard spinach.
Texas A&M: Spinach and other greensHow to sow standard spinach
Direct-sow standard spinach one-half inch deep in rows 1½ to 2 feet apart, with seeds about 1 inch apart. Texas A&M suggests sowing another row every 10 to 14 days for a succession, provided the cool-season conditions remain suitable.
Texas A&M: Spinach and other greensThin and harvest
Thin standard spinach to 3 to 4 inches apart. The source describes harvest when plants are 6 to 8 inches tall. In milder fall areas, clipping 1 to 2 inches above the crown can allow continued growth; observe the plants instead of promising a fixed second harvest.
Texas A&M: Spinach and other greensDo not mix spinach types
This page owns standard spinach timing. Texas A&M describes Malabar and New Zealand spinach as heat-tolerant summer substitutes that do not tolerate cold and can be transplanted after the last frost. They are a different planting decision, not an earlier version of standard spinach.
Texas A&M: Spinach and other greensChoose your next step
You have standard spinach seed
Use the cool-season rule and direct-sow only when the soil is workable and the heat risk fits the crop.Your packet says Malabar or New Zealand spinach
Do not use this page’s dates. These are warm-season substitutes with their own post-frost transplant rule.Summer heat is still active
Delay standard spinach and plan a fall sowing rather than treating a heat-tolerant substitute as the same crop.Planting questions
Can I plant standard spinach in Texas summer?
Texas A&M says high heat and long days cause it to bolt. Use the source’s cool-season timing instead.
Texas A&M: Spinach and other greensAre Malabar and New Zealand spinach the same planting crop?
No. Texas A&M calls them heat-tolerant substitutes and gives them a different cold and transplant rule.
Texas A&M: Spinach and other greensShould I transplant standard spinach?
The source’s standard-spinach method is direct sowing. Keep that method separate from the transplant guidance for the warm-season substitutes.
Texas A&M: Spinach and other greens