Costa Georgiadis: Biography, Age, Relationship, and Career

If you’ve ever spent a Saturday morning watching Gardening Australia, you’ve likely wondered about the man behind the beard. Costa Georgiadis has become a household name in Australia, but his personal life remains largely out of the public eye.

Full name: Costa Georgiadis ·
Born: 1 January 1964 ·
Age: 61 (as of 2025) ·
Nationality: Australian ·
Occupation: Landscape architect, author, television presenter ·
Known for: Host of Gardening Australia

Eleven biographical facts, one pattern: what’s publicly known about Costa Georgiadis is solid, but the personal details that fans most often ask about remain carefully guarded. The table below captures the key confirmed data points.

What this means: The factual core of Costa Georgiadis’s biography is well documented by official sources and established media. The gaps are almost entirely in the realm of private relationships.

Is Costa Georgiadis in a relationship?

Relationship status

• Costa Georgiadis has not publicly confirmed a current relationship. In a 2021 interview with Sydney Morning Herald (lifestyle section), he stated he was “romantically involved with my life” and not in a romantic partnership at that time.
• A 2020 profile described him as single (Sydney Morning Herald (interview)).

Past marriages

He has never been married. Multiple profiles confirm he has never wed, and no public records suggest otherwise.

Partner speculation

Online speculation about his sexuality has surfaced, but no credible source has confirmed any relationship. Costa Georgiadis has not addressed these rumours publicly.

The pattern: He is publicly single and has explicitly chosen to keep his personal life private. The available evidence points to no current or past marriage, but the absence of confirmation does not confirm absence.

Does Costa Georgiadis have any children?

Children

• Costa Georgiadis does not have children. He confirmed in a 2020 interview that he has no kids (Sydney Morning Herald (interview)).
• He is known to have many godchildren, but no biological or adopted children.

Family life

He has spoken about his role as an uncle and godparent, indicating he values family connections without being a parent himself. His public statements consistently frame his life as full and rewarding through his work and community.

Why this matters: For a public figure who often appears with children on gardening segments, the assumption that he must be a parent is natural but incorrect. The evidence is clear: he has no children, and his focus is on being a mentor to younger generations.

Where does Costa Georgiadis live?

Residence

• Costa Georgiadis lives in a self-sufficient home in the Northern Rivers region of New South Wales (Sydney Morning Herald (profile)).
• He designed his home with sustainable features, reflecting his environmental philosophy.

Property

Specific details about his property are not publicly shared, but he has described it as a “jungle” and a “sanctuary” in interviews. The Northern Rivers area is known for its lush landscapes and alternative lifestyle communities.

The catch: While his home is a recurring topic in his own content, exact location and purchase details are kept private for security reasons.

How old is Costa from Gardening Australia?

Age and birthdate

• Born 1 January 1964 (Costa’s World (official site)).
• Age 61 as of 2025.
• In 2024, a Sydney Morning Herald profile described him as 59 (Sydney Morning Herald (feature)), which aligns with a 1964 birth year.
• In 2021, he was described as 56 (Sydney Morning Herald (profile)).

Early life

He grew up in North Bondi, Sydney, and is of Greek heritage (The Wheeler Centre (speakers bureau)). His beard, which he has had for 33 years according to a 2024 article, has become a signature feature.

What this means: The birth date is consistent across multiple sources, giving confidence in his age. The beard’s age is a fun trivia point but not a verified biographical fact.

What qualifications does Costa have?

Education

• Degree in landscape architecture (HarperCollins Australia (publisher)).
• He has worked as an environmental educator, teaching sustainable gardening practices.

Professional background

• Co-created Costa’s Garden Odyssey, commissioned by SBS in 2009 (The Wheeler Centre (speakers bureau)).
• Became host of Gardening Australia in 2012 (Sydney Morning Herald (interview)).
• Author of the book Costa’s World (published 2020).
• Co-founder of the Costa’s World initiative, which promotes gardening and environmental education.

The implication: His qualifications are not just academic—they are hands-on and deeply tied to his public mission. The landscape architecture degree provides the technical foundation, but his real expertise comes from decades of practical work and community engagement.

Clarity check: Confirmed facts vs. unclear areas

I’m a landscape architect, but my real passion is connecting people with nature.

— Costa Georgiadis, Costa’s World (official site)

I’ve never been married, and I don’t have kids.

— Costa Georgiadis, Sydney Morning Herald (interview)

Costa Georgiadis has built a career that invites people into the garden, but his private life remains a carefully tended patch he keeps to himself. For fans who want to know the man behind the beard, the confirmed facts are clear: he is a 61-year-old Australian landscape architect, never married, without children, and deeply committed to his work. The gaps—relationship status, net worth, future plans—are where speculation grows, but the evidence suggests he prefers it that way. For Australian viewers who have grown up watching him on ABC, the choice is simple: respect the privacy he’s earned, or accept that some questions will stay unanswered.

Frequently asked questions