Do you know what Hypertufa is?
Many year ago, I made this hypertufa planter.
Very inspiring! I just might have to make more.....now that I'm retired.
Yesterday, I collected some cactus that had volunteered in our extended yard. I have been watching them for several years while mowing and thinking someday I would pot it up.
Someday finally came.
I also added a couple wild portulaca, aka moss rose. I think it will bloom yellow. It is a weed.
FYI. Wikipedia says:
Portulaca grandiflora (Moss-rose Purslane or Moss-rose), is a flowering plant in the family Portulacaceae, native to Argentina, southern Brazil, and Uruguay.
It is also seen in South Asia and widely spread in most of the cities with old 18th-19th century architecture in the Balkans. In Bangladesh, it is called "Time Fuul", meaning "Time Flower", because the flower has a specific time to bloom. In Vietnam, it is called "Hoa mười giờ" meaning "Ten o'clock flower", because the flower is usually in full bloom at 10 o'clock in the morning.
It is a small, but fast-growing annual plant growing to 30 cm tall, though usually less. However if it is cultivated properly it can easily reach this height. The leaves are thick and fleshy, up to 2.5 cm long, arranged alternately or in small clusters. Theflowers are 2.5–3 cm diameter with five petals, variably red, orange, pink, white, and yellow.