The Tall Zinnias
However, I have since appreciated one trait that zinnias have over the other two: they make a good cut flower, and come back after cutting. The flowers can also last a while on the plant like marigolds, and come in more color varieties. For the last few years I planted Violet Queen - a supposedly purple (but more pink) tall, double flowered variety (Zinnia elegans). Like most zinnias, some were double flowered and some were not.
This year with the Violet Queen [past photo] seeds running low, I ordered yellow Canary Bird zinnia to plant amongst the remaining 'purple' Violet Queen and keep them company in the side garden. Most of the purples did not germinate- (if a good photo of both together develops later this year, I will post it.) The yellows flying solo in the front garden receive more sun. The soil is also better there, having been worked on for more years. I can report that Canary Bird is a winner.
More of the blooms are double-flowered than the violet. They also began blooming a bit earlier than the violet, and have more branching with blooms than the straighter violet. The color is spectacular, I believe because the blooms are the same color as the anthers and stigma. This is one worth planting again.
The Short Zinnias
One year I purchased a mix of a few babies called Mexican Zinnias (Zinnia augustifolia) or narrow-leaf zinnias: white, yellow, and orange in the mix. Without me knowing, they reseeded themselves behind my back and came back the next year in the two places where they had been the previous summer. I was tearing out the infants as weeds since I did not recognize them. The leaves on the seedlings looked similar to a salvia growing nearby, so I let a few grow to see if they were weeds or salvia. Yellow zinnias began blooming.
I also stopped decimating the volunteers in the other bed where they had been growing the previous year. Orange flowers began to emerge there. Since then, I have kept the yellows in one bed, and the orange in another along the walk, and they reemerge every year from their own seed. I give a few away and transplant a few when starting growing in the spring. Funny, but none of the whites reseeded and came back.
This year, after about 5 years of remaining separate, a few yellows came up in the orange bed. What audacity and impudence. I will attribute this to an increase in butterfly and bee activity last fall, beginning about this time of year. Although I would prefer a uniform color, I let it happen. Zinnia augustifolia needs to grow before exposing the flower color. By then, they is too big to think about ripping out. And at this size, they do not like being transplanted.
The plants start out very, very slowly in the spring and develop for a month. Another month of growth producing leaves, a few blooms pop out. Then all of a sudden in midsummer heat, they explode and go wild, developing into the masses you see in the photos.
What I really like about these, in addition to the reseeding, is their ability to naturalize and neatly spill over the edge of the walk like the alyssum without becoming a nuisance. They do not make good cut flowers, since their habit is one of a tumbleweed. Their beauty is in numbers. I tried saving orange seed and starting indoors this spring. I had some success, but the germination rate was not good.
For The Record:
Heavy clay soil with gypsum & organic amendments
Full sun is best
Small amount of fertilizer
Tall zinnias tend to develop powdery mildew in autumn when temps cool
No pests or disease on the dwarf zinnias
Blooming: Mexican zinnia, zinnia, cosmos, salvia, sunflowers, rain lily, rudbeckia, daylily
Harvested: 2 peppers, 4 tomatoes
Removed: Cherry tomatoes, cucumbers