The Altum's Story | Zionsville, IN | Altum’s Horticultural Center and Landscape

Late Summer Gardening Checklist


When you don’t know where to start, start with Snapshot Gardening. You’ll get face time with a garden design pro, time to review photos of your area, personalized ideas and plant recommendations and a $25 gift card to get you started.

Checkbox-imageBOOST YOUR SOIL

One of the best ways to be successful when planting this fall is to amend your soil (50% soil amendment to 50% original soil). Then seal in moisture with a fresh layer of Altum’s Hardwood Mulch.


The time is now, my friend. Perfect conditions, less watering, less stress on your plants and healthier plants come spring. Remember the root ball should be level with the soil line and the wider the hole the better—loosens the soil and gives roots room to grow. Check out the Step-by-Step Planting Guide. We have great results with Fertilome Root Stimulator, too.


If you buy bulbs now while the selection is good, then  strategically plant them (with some Dutch Bulb Food) when the ground has cooled come October, you’ll be in for a lovely spring surprise.

Checkbox-imageMAKE IT YOURS

Put together your own concoction of mums, pumpkins, pansies, ornamental grasses, seed pods, curly willow branches, cabbages and kale in containers, windowboxes or beds.

Let’s grow together. Stop in, call 317.733.GROW and find what you need online.

The Altum’s Story

Bob Altum of Indianapolis Garden Center AltumsFrom the first tree in 1958 to the spectacular, fanciful, and charming landscapes that followed, Bob Altum worked with purpose and passion, building beautiful gardens and lasting relationships with his clients.

For 50 years, he and his team have started every job with the most robust, vibrant plants from handpicked local suppliers who know the soil and stake their reputation on quality. Bob appreciated the “local mentality” because he practiced it himself, investing his time, attention, and resources in giving the best to his clients. This is how he earned the trust and business of generations, who learned, one after the other, that Bobʼs creativity, personal touch, and painstaking perfection were what made—and continue to make—the Altumʼs name.

Today, the Altum family practices Bobʼs garden principles from its expansive horticultural headquarters nestled between Zionsville, Carmel, and Indianapolis, Indiana. This is where we bring ideas to life. Because we share Bobʼs belief that there will always be two things worth building: gardens and relationships.