Is Spinach in Season? (Cooking Triples Calcium Absorption)

Baby Spinach vs English Spinach

These are two distinct varieties with different growing seasons and uses. Baby spinach (young leaves harvested early) is available nearly year-round in hydroponic operations but peaks in cooler months. English spinach (large, dark, wrinkled leaves) is strictly seasonal — peaking in autumn and spring — and has a more robust, mineral flavour.

For cooking (pasta, curry, soup), English spinach holds up better. For salads and smoothies, baby spinach is ideal.

When Is Spinach in Season in Australia?

Peak season is March–May and August–November. Spinach bolts (goes to seed) in heat, producing bitter leaves, so summer spinach is often tough and poorly flavoured. Winter is generally too cold for outdoor crops in southern states, though hydroponic baby spinach fills the gap.

How to Pick Fresh Spinach

• Leaves: Vibrant deep green, no yellowing or browning edges.
• Stems: Crisp and firm, not wilted or slimy.
• Smell: Fresh, green, clean. Any fermented or musty smell is a red flag.
• Texture: Leaves should spring back when gently pressed, not stay flat.

Iron Absorption Tip

Spinach iron (non-haem iron) is less bioavailable than meat iron. To maximise absorption, eat spinach with vitamin C — a squeeze of lemon, some tomato, or capsicum dramatically increases how much iron your body can absorb from the meal. Avoid combining with dairy or coffee, which inhibit absorption.

How to Store Spinach

English spinach: wrap in a damp paper towel, store in a loose bag in the fridge crisper. Use within 3 days. Baby spinach in a sealed bag keeps 5–7 days. Never wash before storing — moisture accelerates decay.

Where Is Spinach Grown in Australia?

Australian spinach is grown across multiple regions and climates:

• Hydroponic farms (nationwide): Baby spinach is grown hydroponically year-round in climate-controlled greenhouses in all states. This ensures continuous supermarket supply regardless of outdoor season.
• Victoria & Tasmania: English spinach thrives in the cool climates of southern Australia. Peak outdoor harvest is autumn (March–May) and spring (August–November).
• Queensland (Stanthorpe, Lockyer Valley): Winter spinach production when southern states are too cold. High-altitude growing areas allow spinach in cooler months.
• South Australia (Adelaide Hills): Excellent autumn and spring spinach from cool-climate growing regions.

How to Cook Spinach (Without Losing Nutrients)

Spinach shrinks dramatically when cooked — a large bag reduces to a small handful. To preserve nutrients:

• Steam, don't boil: Boiling leaches water-soluble vitamins into the cooking water. Steaming retains up to 90% of nutrients.
• Cook briefly: 2–3 minutes is enough. Overcooked spinach loses both nutrients and flavour.
• Cooking unlocks calcium: Raw spinach contains oxalates that block calcium absorption. Cooking breaks down oxalates, making calcium up to 3x more bioavailable.
• Pair with vitamin C: Add lemon juice, tomato or capsicum to cooked spinach to triple iron absorption.

Spinach Health Benefits (Expanded)

• Iron: Spinach is famous for iron, but the type (non-haem iron) is poorly absorbed. Pair with vitamin C to dramatically increase absorption. Cooked spinach provides more bioavailable iron than raw.
• Vitamin K: One cup of cooked spinach provides nearly 1000% of your daily vitamin K — essential for blood clotting and bone health.
• Lutein & zeaxanthin: Powerful antioxidants that protect eye health and reduce the risk of macular degeneration.
• Folate: Critical for cell division and particularly important during pregnancy.
• Magnesium: Supports muscle function, sleep quality and over 300 biochemical reactions.
• Low calorie: Just 7 calories per cup of raw spinach — one of the most nutrient-dense foods available.