Rhubarb & Custard Collarette Dahlia Tuber – Rare Heirloom Flower Bulb PREORDER for Spring 2026

*This is a PREORDER that ships early Spring 2026 Meet the showstopper of your summer garden: the Rhubarb & Custard Collarette Dahlia available at Blue Buddha Farm. This rare and irresistible variety features creamy custard-yellow petals kissed with bold rhubarb-red tones and a cheery golden center — an exquisite bloom that looks as delicious as its name.  With its warm & cool color contrast, this collarette dahlia adds instant charm and vibrant personality to garden beds, borders, or cut-flower arrangements. Each tuber grows into a profusion of 3-inch blooms that light up your garden from midsummer to first frost. Whether you're a seasoned gardener or a dahlia enthusiast, this rare tuber is a must-have for your collection. ✨ Product Highlights 🌸 Variety: Rhubarb & Custard (Collarette Type) 🧡 Color: Creamy yellow with deep raspberry-red blush 📏 Bloom Size: Approx. 3 inches 🌿 Growth Habit: Bushy, mid-height 🕒 Bloom Season: Midsummer through frost 🧬 Type: Tuber (