GIANT MAXIMILLAN'S SUNFLOWER Helianthus maximiliani
A gorgeous, massive sunflower reaching up to 10' tall! Flowers are extremely vibrant, adding sunshine to the perennial garden. Unlike most common sunflowers, this is a perennial, which means it will return each growing season without having to replant! Flowers are plentiful. Plants are easy to grow, and are tolerant of dry conditions.
Type: Hardy perennial
Hardiness zones: 4-9
Seeds per pack: 30
Germination: As with many perennial seeds, these seeds benefit from a period of moist cold to help them begin to grow. This is done by giving them a cold 'winter' period (natural or artificial), and then a warming to simulate 'spring', and time to grow! Here's how this can be done:
Obtain a planting container that has holes in the bottom for excess water to drain. Place the seeds just under the surface of your growing medium, and water. Place your container in a cold area (but not freezing, perhaps a refrigerator) for 4-6 weeks. Once the cold period is completed, place the container at room temperature for them to germinate. Be sure to keep the soil moist during this entire germination period. Seedlings will sprout a few weeks, or occasionally several months, after the warming period.
If you are planting your seeds in late winter or spring, these seeds can be planted outdoors while it is still cool out (once the ground is workable and unfrozen), to receive the cold period naturally in the garden.