Non-blooming Cotyledon, slow growing grapes

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Hi All,

A couple of minor garden problems here:

I have four Cotyledon orbiculata in terra cotta pots.  They were purchased in one-gallon containers, and have grown to fill out fairly large terra cottas, but they have no flowers and show no signs of flowering.  They get watered once a week, and look happy, just no flowers.  They are a green-leaved as opposed to a silvery leaved variety, I don't know if that matters.

The other problem has to do with grape vines on a pergola.  The grapes are Vitis 'Roger's Red', which recent genetic testing has demonstrated is a natural hybrid between Vitis californica and Vitis vinifera. They were planted in Autumn 2005, and we don't yet have full, or even 50%, shade over the pergola. They are in a mulched clay loam soil on a berm, with low to moderate irrigation.  Again, they look happy and produce grapes, but even with my training and pruning, the vines don't give us real shade.

Any advice?

-Ben Armentrout-Wiswall

Simi Valley, inland southern California