Maximilian Sunflowers (Helianthus maximiliani)

Maximilian Sunflowers lining the entrance of Wldseed Farms in Fredericksberg

As you drive along the high ways and by ways of our great state this fall, notice all of the native plants that are in full bloom.  Fall is a great time for many native flowers and perennials.  One of the most stunning and prolific of the fall blooming Texas natives is the Maximilian Sunflower.  It is hard to drive anywhere in Texas right now and not see this stately and beautiful plant.  Maximilian Sunflowers produce stalks that can reach 8’ to 10’ in height.  The tall stalks can be completely covered with bright yellow flowers from their base to their tip.  These flowers produce tons of little seeds that ensure that they, and many species of wildlife, will survive until next year.

Close up of the heads of these beautiful flowers

Maximilian sunflowers are actually a perennial plant.  Even though they flower and disperse their seeds like an annual, their roots will survive even the harshest of Texas winters.  Due to this combination of perennial roots and very productive seed heads, Maximilian Sunflowers often develop into very large and thick colonies of plants.  The yellow flowers of these colonies result in fabulous drifts of yellow that paint the fence rows and ditches of fall rural Texas.

The stalk of my Maximilian right before it bloomed, This stalk is about 9′ tall

Even though Maximilian’s are native, they do very well in cultivation.  I have this plant in my beds and so do many of my friends.  It is a great pass along plant.  In fact, that is how I got mine.  My friend Cynthia Mueller brought me some shoots from her established colony this previous spring.  Cynthia has a very beautiful stand that she divides every year and shares with all that want them.

Maximillians in the front border of my potager

Since Maximilian Sunflowers are a native plant, they will do well in low water situations.  However, if you want them to be truly spectacular, water them just like any other bedding plant (about 1” of water per week).  They love full sun and will grow in just about any soil type.  Because of their tall foliage, you may be required to stake or prune them.  If pruning, trim them down to about 2’ or 3’ in late June or early July.  This will keep the plant from growing much over four feet.  When pruned in this manner they can make a very attractive hedge or border. Also, since Maximilians are sunflowers, they last forever as a cut flower in your fall bouquets.

Maximilian’s in mixed Fall bouquet from my beds

My wife and I recently visited Wildseed Farms in Fredericksberg.  They use Maximilian Sunflowers extensively throughout their property and the results are beautiful.  While on their property, I noticed Maximilian used as a stand-alone specimen, in stunning combinations and in mass plantings.  Each use of the plant was very appealing to the eye.   This large scale, fall blooming plant will reward you with beautiful flowers for years to come and, as an added bonus, this tough and reliable fall perennial will draw in several species of birds, moths and butterflies to your garden.  If you would like some for yourself you can order on-line (or visit) Wildseed Farms or  get a start from a friends garden.  This lovely perennial will reward with years and years of reliable blooms.

13 thoughts on “Maximilian Sunflowers (Helianthus maximiliani)

  1. I know so little about plants and flowers that really we can easily say I know NOTHING. Thank you for the informative look and explanation on one of our native plants that I see alot and always wonder (since it seems to spring up without planting it) am I looking at a weed or a flower? Now I know.

    • So glad I could help! Thanks for taking time to leave a comment. It is so good to hear from you. BTW, do you remember what you were doing nine years ago today?

  2. Thank you very much for the info on this flower,Maximiliani Sunflower.It is just beautiful I just planted 3 this summer.

    • You will love it. If you let it go to seed and die back naturally you will have it forever! I started with just a few plants and I now have it in several places on my property. I love it. It is just about to flower at my house. Can’t wait. It is beautiful!

  3. Thanks for responding so quickly and in such a positive way. Sorry I was so grumpy but this was the first time I had visited and – as you mentioned – I didn’t know the backstory, hence being taken aback to see the suggestion in what otherwise seems to be such a good blog. I will be back to visit again as time allows, but in the meantime please feel free to delete this thread, and thanks again.

    • No problem! If I am wrong, I am wrong. I think the article is much better after your suggestions. Glad you are enjoying the blog!

  4. I have one in my Spokane, Washington garden. I’m glad to hear about pruning so they are shorter as mine has gotten about 11 or 12 feet the last two years. I wonder, though, if I prune them back will they still have time to bloom?

    • Not sure since your growing season is so much different than ours. Mine were in full bloom last week. If yours bloom around the same time then I would say yes.

      • Actually, they’ve pretty much finished blooming but we’ve had an exceptionally warm fall, even though we did get light frost in my outlying garden pretty early, but they don’t seem to be too much affected. we’ll find out next year!

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