Today's choice?
Hemerocallis (Day Lily)
Easy to grow, loves full sun, doesn't mind the wind, doesn't need much water (can be left unwatered for months!), poor but well draining soil, loads of flashy flowers, various colours/patterns in mainly yellow, orange, reds ranges. Foliage can be cut almost to ground level after flowering when it gets tatty, you'll get fresh new growth but probably no more flowers until the next season. Every 3 or 4 years if the clump has got quite big it benefits from being lifted and divided. Self seeds if you're lucky, black seeds are fertile, pale seeds not.
I'm surprised not to see these for sale more often in Fuerteventura - very suited to gardens where you aren't in residence all the time, just make sure you're here during flowering season to enjoy the blooms. Each bloom only lasts for one day but each stem bears many flowers. This is an odd flower that has popped out well after this year's main display.
I didn't cut back after flowering this year hoping to get some self seedlings - and there are several little seedlings that look like grass that I have high hopes for!
Update 3rd Sept. I now have 6 new flowering stems growing so it looks like I'm getting a complete second bloom this year, bonus!