November 2024 in the Southern Hemisphere

[fermi de Sousa]

November is the end of spring and we are hurtling towards summer.
There are still a lot of flowers coming before the garden goes into its "summer dormancy".
1) Tritonia crocata orange shades
2) Ornithogalum thyrsioides
3 & 4) Eremophila hygrophana
5) Herbertia lahue
cheers
fermi

[fermi de Sousa]

Harking back to the discussion with Robert in the October Thread, here are a couple of "Themids"
1 & 2) Dichelostemma volubile
3 & 4) Triteleia ixioides
cheers
fermi

[Robert]

Hi Fermi,

Thank you for all the information.



Here in California I am working on developing forms of Triteleia ixioides with enhanced deep maroon markings on the petals. This is a characteristic I enjoy immensely. Currently I am using both ssp. scabra and unifolia in these hybrids. They are such easy plants to please in the garden, tolerant of a fair degree of summertime irrigation and/or completely summertime xeric conditions.

While on the topic of plants that thrive where summers are extremely hot and dry, here are a few other plants I am working with.



This is Delphinium patens ssp. patens growing in our Sacramento garden. This low elevation California native goes completely dormant during the summer. It is a xeric species that is not bothered by extreme summertime heat or drought. The forms that I grow bloom into the late spring, extending our garden’s bloom period before the garden goes into its summer dormancy.



The flowers of the species range in color from light lavender-pink through deep lavender-blue. Currently, I am working on my second generation of hybrids. I have selections that persist and bloom consistently each season in our Sacramento garden. Extending the color range is another goal.



Pictured is Delphinium hansenii ssp. hansenii blooming in our Sacramento garden. It is another xeric low elevation species.



My favorite xeric, low elevation species is Delphinium gracilentum. This species also has an extended range of flower colors.

[Robert]

Yet another local xeric species I am working with is Allium campanulatum. Here in our Sacramento garden the flowers tend to be washed-out pale pink, however through selection I am hoping to find forms that will bloom consistently with deeper pink flowers in our low elevation garden.

All these plants thrive in wintertime cool/moist – summertime extremely hot/dry climates. They seem like they would be good additions to gardens in climates like yours. Likely gardeners in your area already grow these species, however if not, these species might be worth considering.

[fermi de Sousa]

Hi Robert,
those delphiniums are something else I  might try someday.
This Brodiaea came up as a volunteer - I wonder if it's Brodiaea elegans?
cheers
fermi

[Robert]

Hi Fermi,

The plant pictured “looks” like Brodiaea elegans. Making a definitive identification online is questionable. I would feel much more comfortable looking at the plant in your garden. If you have a large collection of Brodiaea species in your garden, hybrids are possible. In addition, seeds offered in seed exchanges can be misidentified, mislabeled, or be unintended hybrids. Such things occur much more frequently than we might want to believe. If getting a positive ID is important to you, my suggestion is to checkout the Calflora website (calflora.org). There are links to Jepson eFlora (ucjeps.berkeley.edu) where you can find dichotomous keys, as well as a detailed botanical description of each taxon.



Having written everything above pictured is a close up photograph of Brodiaea elegans ssp. elegans growing in its native habitat in El Dorado County, California. This photograph might be helpful for identification of the plant in your garden.



Pictured is another scene of Brodiaea elegans ssp. elegans in its native habitat in El Dorado County, California. It is one of the last Brodiaea species to bloom in our area each season. Brodiaea elegans grows abundantly on our El Dorado County farm property. It is mostly a low elevation species, however I have studied, in detail, a population that is found at an elevation of 5,125 feet (1,562 meters) in El Dorado County, California. This is well above the usual altitude range for this species.



Pictured above is Brodiaea elegans ssp. elegans in our Sacramento garden. If the species is well placed in the garden it can be quite effective in the landscape, harmonizing with other species, and making an attractive, naturalistic display. I have a number of interesting hybrids coming along, such as Brodiaea elegans x terrestris, as well as others. Brodiaea minor is another species I grow in our garden and enjoy greatly. It is a much more diminutive species and can be used in the garden in different ways.

I will be curious to find out what you discover about your seedling plant. I am always interested in how the Themidaceae perform in other gardens. May you have good fortune.

[fermi de Sousa]

Hi Fermi,

The plant pictured “looks” like Brodiaea elegans. Making a definitive identification online is questionable. I would feel much more comfortable looking at the plant in your garden. If you have a large collection of Brodiaea species in your garden, hybrids are possible.

Hi Robert,
I suspect this is a hybrid between Brodiaea elegans and possibly B. coronaria which I also grow in pots.
Last week I visited a friend who lives just 25 km away and she can grow many cool climate plants I have no hope of growing here.
Here is her Meconopsis horridula and Roscoea humeana (or R. cautleyoides?)
cheers
fetmi

[Leucogenes]

Wow... your friend's Meconopsis horridula is gorgeous Fermi. I've tried it several times, but it failed at germination. How big (tall) is this M. horridula on your friend?

Thanks for showing me. A great pleasure here... at 4 Celsius, fog and rain...😉

[Robert]

Hi Fermi,

25 km distance from your home and your friend can grow Meconopsis! This is a tremendous temperature gradient. What is going on geographically that there is such a temperature gradient? A barrier of mountains or hills, a large elevation difference, proximity to the ocean, or something else?

Below are a few plants gardeners in your summertime hot, dry climate are likely already familiar with, as they thrive with such climatic conditions.



This seedling of Eriogonum ursinum var. ursinum is displaying some nice autumn leaf coloration. I will be planting this seedling in our cinder-block garden where the drainage is excellent. As I grow more seedlings of this species I will trial them in our loam soil. Many of our California native Eriogonum species grow just fine in our loamy soil without grit for additional soil drainage.



Pictured are two Eriogonum incanum seedlings. This species exhibits a great deal of genetic variability. I especially value tight growing plants with intensely silvery foliage. The plant at the bottom of the photograph exhibits this silvery foliage characteristic.

This species needs very quick drainage to do well. I will be planting these seedlings in our cinder-block garden too.



Eriogonum prattenianum var. prattenianum is another species that exhibits a great deal of genetic variability. I especially enjoy the prostrate, silvery foliaged variations of this species. Plants that form dense buns are desirable too, as many in the wild can be quite sparse.

The seeds were gathered in an intensely hot, sunny, rocky area with many andesite boulders. These too will be grown in our cinder-block garden until I have more plants to trial in our loam soil.



Pictured are second-generation seedlings of Penstemon azureus var. angustissimus. This species performs extremely well in our Sacramento garden. The goal here is to bring out the best qualities in this outstanding species that also performs well in summertime hot/dry climates.



This year’s crop of California native annuals is beginning to germinate. Some species benefit from fire/smoke treatment to enhance germination. Fire/smoke is not always necessary for germination. I have been developing lines that have a high germination rate without fire/smoke treatment. This year I have over 50% germination with Chaenactis artemisifolia. Eucrypta chrysanthemifolia var. chrysanthemifolia is another species that fire/smoke can improve germination I am working with. Being able to skip the fire/smoke treatment makes growing these species from seed much easier.