Getting to Lake Como April first. How are the gardens and weather doing...
Walt,
The temperatures for Como in April should be in the range of min. 8.3ºC and max. 17.6ºC (according to Italian tourism information). However, as you can appreciate there are never any guarantees with the weather!
Which community will you be staying in? You might check with the staff at the Hotel you booked, as they would be the best source of "first hand" information.
Happy travels!