Former banker grows vegetables on walls

Profitable venture: Grobrix plans to expand its team of 15, having already established a presence in Malaysia and the United States.

SINGAPORE: For Mathew Howe, a classic pesto recipe is not complete without pine nuts, garlic, extra-virgin olive oil and, most importantly, a healthy measure of fresh basil.

While the herb is readily available in local supermarkets, he found that growing his own is more cost-effective, and he could also produce varieties that are tastier and more fragrant.