I will be installing a T shaped trellis this coming spring. What I think you see as a stake towards the left, is part of my dad's temporary greenhouse he made for his guava seedlings and Moringa. This year, I kept the vines up with plum branches.. So, since you say run one cane or another up the T, does that mean I can keep both of these canes as permanent trunks? This will not result in inferior fruit production or be too overcrowded?

Perlette is already a smaller grape. The link below is a way to help increase size. Rule of thumb is maintaining ten bunches per cordon arm. Your area is really good for grape growing. So you can likely cheat with more as the years pass.

Fruitnut, I have a flame grape that I am going to plant next year, and now I am looking for a black grape (well, if I can make room for it). I am thinking Autumn Royal because of its late harvest so that I'll have grapes throughout the year. I've had black grapes recently which tastes very sweet, with a clear flavor reminiscent of Lychee- can't be sure but it seems to look most like autumn royal; very dark and somewhat elongated. What do you think of Autumn Royal?

Thanks for everyone's help.

Autumn Royal has very big berries, biggest of any seedless, in a moderately tight, large cluster. But flavor is mediocre.

My favorites are Flame, Summer Royal, Princess, and Crimson. Summer Royal has been best over 10 yrs but last yr Princess was probably best. Flame is very crisp and sweet. Crimson lasts until Dec.

The best tasting grape I've grown by far is Summer Muscat, incredible flavor. But berries are small and they crack. Still it was bred for your area and is worth a try. It's on the early side.

Thanks for the suggestions. I'm glad that Flame is one of your favorites considering that I already have it, ready to be planted. I will keep an eye out for Summer Muscat when I go to the nursery this spring since you say its by far your best. My Perlette grape fruits got a lot of attention from guests, so I'm hoping to find grapes that will hang off the vines as long as possible.

The best grapes I've tasted was Labeled as Scarlet Royal, I purchased at Safeway. The fruit were dark red, sweet, VERY firm and crunchy. The family noticed a difference in how these grapes were spectacularly different and delicious. Unfortunately, it looks like there aren't any vendors selling the plants online as of yet though, so i guess they are unavailable for home gardens.