Sunflower - Mammoth

Sunflower - Mammoth
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5.0 average, based on 2 reviews


Product Information
Helianthus annus  --  Organic - AusQual Certified - Grown at Greenpatch Organic Seeds
Mammoth is one of the largest growing types getting to 3m high. Mammoth sunflower produces large yellow flower heads to 40cm across. A heavy feeder preferring fertile soil in a full sun position. Flowers in 12-14 weeks. 
Sow Spring - Summer
Seed packet contains approx 35 seeds
Approx. 13 Seeds per gram


Customer Reviews

Average Rating: 5

Excellent germination

I planted mine as soon as they arrived and I've had a very high germination rate. Highly recommended. I'm excited to see how they go flower wise.Xanthe Jary (29 Oct 2021, 06:39)

Biggest Sunflowers Ever!

After a hiccup with receiving seeds that didn’t germinate, the understanding team at Greenpatch replaced them and the new seeds germinated beautifully and grew into the biggest Sunflowers I’ve ever grown! The tallest grew to 11.5 feet - that’s 3.5 metres tall! The largest head was 40 cm’s across! I could not be happier. These incredible flowers dwarfed everyone who saw them and were real show-stoppers! Totally incredible!Akiram (21 Feb 2021, 17:28)
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NEVILLE P & SOPHIA DONOVAN Trading as Greenpatch Organic Seeds

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