That's going to be pretty hard to get to this time of year and would involve a fair bit of snowshoeing to get to the trees themselves, especially the Bush Tree, which is at the far end of that trail.
Personally, I think it's worth it, even for a day drive. The trees are really that cool. I think you've got two basic options: the trees in the Upper Tule area (Giant Sequoia NM) and driving to Sequoia NP for the Giant Forest. For the NP, it's a longer drive but lots of big trees. You'll snowshoes to get very far but probably well worth the effort.
For the upper Tule, I think you're best bet is to hit the Amos Alonzo Stagg Tree up near Sequoia Crest. We have a cabin in Camp Nelson, which is down the hill from it, and there are groves there but they really aren't accessible this time of year. The Stagg tree is accessible in winter, and while you'll have to hike to reach the tree itself (the 6th largest in the world and the largest on private land), the trail is packed down some you'll be fine without snowshoes. You'll also see lot of big trees en route in the community of Sequoia Crest itself and on the hike to the tree. You can get specific directions to the tree at the restaurant in Pierpoint Springs, which is along the highway to get there. It'll be about 3.5-4 hrs. from Glendale. Bring chains.