flowers Denselygreat For Containersextra-large Flower Heads this Beautiful New Variety Is Available For You To Buy. Verbena Showboat Magenta Has Extra-large Flower Heads, Densely Packed With Cute Pink-magenta Flowers With Central White Eyes In Big Numbers, Lasting From Early Summer & Into Autumn.showboat Magenta Looks Beautiful Spilling Over The Sides Of Containers & Hanging Baskets. We Recommend You Grow This Variety In Its Own Right, Positioning Three Young Plants To A 30cm (12in) Container So They Are Packed In & Really Make A Show When They Are In Full Flower In Summer.this New Variety Shows Excellent Resistance To Mildew Which Means You Get Successful Flowering Even In Unpredictable Summer Of Haphazard Rainy & Sunny Weather.verbena Showboat Magenta Grows Happily In A Sunny Part Of The Garden Or Part Of The Garden That Receives Sun For Some Of The Day. If Growing In Containers Use A Multi-purpose Compost & Keep It Moist, Watering Once A Day, Or Twice In Hot & Windy Spells.