OLEANDER HARDY DOUBLE YELLOW (Full Gal) This offering is for a Full Gal. Oleander hardy dbl Yellow -Yellow fragrant blooms They will be sent to you bare root via USPS Priority Mail. Full sun to Zone 8 (10-20 degrees) 6-10 feet tall and 4-6 feet wide at maturity. All parts of plants are poisonous. We offer these in Gal, Full Gal., 3-Gal, and 5-Gal sizes.