Main Page | See live article | Alphabetical index Garden Lupin (Lupinus polyphyllus) is a lupin commonly used in gardens for it's flowers. Often hybrids between Garden Lupin and Lupinus arboreus is used, and sold under the name Rainbow Lupin. Lupins are very hardy and can easily become very invasive and hard to get rid of. This article is a stub. You can help Wikipedia by fixing it. This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.