Q.planting lupines
I want to plant lupine at our cabin in the Sierras in California. When is the best time to plant seeds? I have read that they bloom in spring. What does the plant look like when not in bloom? Is it dry and ugly? I have a big open area in front of the cabin with no trees – just dirt – and I need curb appeal. Any other ideas are greatly appreciated. Thanks.

Though Lupines are a beautiful flower they may not be what you are looking for in terms of establishing a plant that will look good for most of the summer or even longer.
Here is a link with more information.
https://www.gardeningknowhow.com/ornamental/flowers/lupine/growing-lupines.htm
There are many other options for plants and flowers and I'm listing several articles to help you.
https://www.gardeningknowhow.com/special/xeriscape/drought-tolerant-ground-covers.htm
https://www.gardeningknowhow.com/ornamental/groundcover/monkey-grass/monkey-grass-a-spectacular-groundcover-for-the-lawn.htm
https://www.gardeningknowhow.com/ornamental/flowers/ice-plant/growing-hardy-ice-plant.htm
https://www.gardeningknowhow.com/ornamental/groundcover/dichondra/growing-dichondra.htm
https://www.gardeningknowhow.com/special/xeriscape/drought-tolerant-perennials.htm
https://www.gardeningknowhow.com/special/xeriscape/drought-tolerant-plants-for-nearly-any-landscape.htm