Maximilian Sunflower Seeds
Maximilian Sunflower Seeds - Helianthus maximiliani
- Hardy to Zone 3
Full Sun
- Germination Tested November 22, 2024: 100%
- Approximately 80 seeds per packet
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Maximilian sunflower is an excellent multi-purpose permaculture plant. It's a late bloomer, making it an important nectar source for pollinators late in the season. It can grow up to 8 feet tall in ideal conditions, making it an excellent privacy screen or wind break. They like moist but well draining soil in full sun.
The seeds are small, but edible. The plants are quite deer resistant. The roots form a thick barrier that can keep grass from creeping into a garden. Toby Hemenway calls them a "fortress plant."
Plants eventually grow to form a patch that produces a lot of biomass useful for mulch and composting.
50% of sales from this variety go to Sovereign Seeds, an Indigenous-led initiative dedicated to the revitalization of Indigenous seed and food sovereignty in so-called Canada.
Growing Instructions
Growing Instructions
Direct sow or plant in pots in fall or spring. No cold stratification is required.
Shipping & Returns
Shipping & Returns
We ship seeds via Canada Post within Canada for $6 to $8 depending on weight, and Internationally for a flat rate of $20*. Shipping costs to the US will include the cost of a phytosanitary inspection and certificate, as well as tariffs.
Live plants, bulbs, and bulbils can only be shipped within Canada.
Shipping fees listed here are in Canadian dollars, and may change without notice.
Shipping in Canada
We ship seeds in Canada via regular letter mail, which is an untracked service, and usually takes 1-3 weeks to arrive once we fulfill your order, but occasionally orders take longer, especially to the Eastern provinces and rural areas.
Customers can now opt for tracked, express shipping options at checkout if you require faster delivery.
Larger bulbs and plants are sent via tracked flat rate box.
Shipping to the US
Shipping charges to the US will also now include a government phytosanitary inspection and certificate. This will be bundled into the shipping cost. We ship via Canada Post, and any applicable duties will be calculated at checkout. So far (as of Sept 1, 2025), it's looking like there are no duties charged on seeds.
Please expect delays for US shipping, as during busy times it can take up to 2 weeks for us to book a phytosanitary inspection.
Shipping Internationally
International customers can select tracked or untracked shipping at checkout. The package will list the contents as "Garden Seeds". It is your responsibility to ensure you have the required import permit. We are not able to send any live plant materials internationally. Cicada Seeds will not be responsible for any orders held or confiscated by customs, or for any additional duties or tariffs placed on your order.
International shipping countries include: Austria, Belgium, Czechia, Denmark, Finland, France, Germany, Hong Kong SAR, Ireland, Israel, Italy, Japan, Malaysia, Netherlands, Norway, Portugal, Singapore, South Korea, Spain, Sweden, Switzerland, United Arab Emirates, United Kingdom.
This list may change without notice. Sometimes Canada Post will not allow us to ship to certain countries due to wars or natural disasters, see this page for delivery service alerts: https://www.canadapost-postescanada.ca/cpc/en/our-company/news-and-media/service-alerts.page
Please reach out if your country is not on this list, email us and we will try to arrange an alternate shipping option.
Return Policy
If you have any issues with your order, please contact us within 60 days and we will do our best to make it right.
Ecologically Grown
Ecologically Grown
Seeds are grown ecologically without the use of chemical pesticides or fertilizers.

Michi is incredibly knowledgeable, helpful, and passionate.
I highly recommend Cicada Seeds for anyone looking to start or expand their garden. I’ll definitely be ordering again!
I’ve started my astragalus seeds so far and have had a great germination rate! Very happy thank you!
I haven't planted them as of yet so I have no idea how they are. I've been told good things about your seeds!
Judi
I have been looking for these seeds for years! So excited to have found them LOCALLY! I will be supporting this local small business in the future!