Sunday, November 14, 2021

Agave isthmensis


 Agave isthmensis: Dwarf Butterfly Agave

Having a shadowy zigzag imprint on its powdery grey leaves gives this small 30cm Agave a distinctive look. It is easy to grow requiring little water and though slow growing, there are few congested "pups" around the base to detract from the neat rosette shape.
Hardy to -3C and worth considering for decorative container growing or semi shaded garden position under trees. 


Thursday, November 4, 2021

Reseda odorata 'Machet Ruben' (Mignonette)

 Reseda odorata 'Machet Ruben'

(Resedaceae) 

I have not grown this spring flowering annual for a number of years and came across it in a seed catalogue while ordering summer vegetables.  August here is the month when you can start seeds indoors in a bright location. Germination was quick and they were ready for potting on in no time. While most gardening books say it can be difficult to transplant into garden beds, I had success with placing three or four seedlings close together in 175 mm pots which was to be their flowering 'home'.

 I placed the pots along a low wall in full sun to help kickstart them during the normal cold early  spring days. Growth was slow at first but they responded to some liquid fertilizer and they soon became bushy plants to about 30cm with flower spikes appearing in late September at which time I moved the pots to bench height to better enjoy the sweet perfume released from the flower spikes in late afternoon. You don't have to stick your nose up close either as the fragrance is in the air from a distance away. It is described as ambrosial so no wonder the French in the southern perfume industry region called this plant Mignonette or 'little darling'. 

Bill Simpson in his book Growing Annuals (Kangaroo Press 1988) described the flower as having orange red bell clapper stamens protruding like grapes from insignificant white-yellow 6mm wide flowers accompanied by smooth spoon shaped plain green leaves. The leaves wilt quite quickly on hot days or when the plants are lacking water so the ideal location is in a semi shaded garden position with moisture retentive soil.

It is a North African plant in origin and it must have caught the eye of 19th Century naturalist Charles Darwin who used it to study self-fertilized plants published as The effects of cross and self fertilization in the vegetable kingdom.

Mignonette is not showy but as perfumed flowers go it is up there with the best.





Thursday, October 21, 2021

Trichocereus bridgesii 'Monstrose'

Trichocereus bridgesii 'Monstrouse'
Given the common name in German Frauengluck or Women's Joy this small compact growing cactus has been in cultivation for many years and that common name is always a source of amusement for those who view the smooth cylindrical segments with their distinctive cleft for the first time. "Oh I see...."
it was formally known as Echinopsis lageniformis and may be given a further taxonomic shift given the current advances in plant molecular DNA.
The lower sections of this cactus have quite long spines which make repotting or weeding close by a minor problem but it is otherwise very hardy and decorative.
I grow some in larger pots so it has more room to show off its interesting form.